Curriculum 21: Essential Education for a Changing World (Professional Development) | Price history

05/08/2021: $26.05

05/03/2021: $28.95

05/02/2021: $24.14

04/30/2021: $26.05

04/27/2021: $23.79

04/26/2021: $23.18

04/15/2021: $23.79

04/08/2021: $24.67

03/26/2021: $26.05

03/22/2021: $28.95

03/17/2021: $27.53

03/16/2021: $28.79

03/13/2021: $25.23

03/12/2021: $27.53

03/05/2021: $26.05

02/19/2021: $25.31

02/18/2021: $23.65

02/13/2021: $25.31

02/11/2021: $26.05

02/10/2021: $25.31

02/09/2021: $26.05

01/29/2021: $25.31

01/20/2021: $26.05

01/19/2021: $25.34

01/18/2021: $22.92

01/14/2021: $28.95

01/13/2021: $26.6

01/06/2021: $26.05

12/23/2020: $26.57

12/08/2020: $27.1

11/23/2020: $26.57

11/14/2020: $26.05

10/30/2020: $24.22

10/25/2020: $26.05

10/24/2020: $25.32

10/12/2020: $26.05

10/09/2020: $26.1

10/08/2020: $25.6

10/04/2020: $26.1

08/05/2020: $26.05

03/14/2020: $19.99

03/06/2020: $21.49

02/13/2020: $21.99

02/11/2020: $21.62

02/03/2020: $21.99

01/20/2020: $21.84

01/13/2020: $22.43

01/06/2020: $22.14

12/15/2019: $21.71

12/07/2019: $21.38

11/30/2019: $21.71

11/28/2019: $21.38

11/24/2019: $20.88

11/23/2019: $21.38

10/25/2019: $20.97

10/23/2019: $21.76

10/22/2019: $20.56

10/17/2019: $21.76

09/28/2019: $21.34

09/18/2019: $20.93

09/14/2019: $20.52

08/22/2019: $20.12

08/12/2019: $21.4

08/10/2019: $21.3

08/09/2019: $19.74

08/08/2019: $22.45

08/06/2019: $20.99

08/05/2019: $22.45

08/04/2019: $19.85

08/02/2019: $19.69

08/01/2019: $20.2

07/30/2019: $24.66

07/26/2019: $22.45

07/24/2019: $24.66

07/20/2019: $22.45

07/17/2019: $22.49

07/14/2019: $24.66

07/13/2019: $24.59

07/11/2019: $24.63

07/09/2019: $24.66

07/08/2019: $22.45

07/07/2019: $22.49

07/05/2019: $25.72

07/02/2019: $24.66

07/01/2019: $23.94

06/27/2019: $24.19

06/25/2019: $24.14

06/24/2019: $24.19

06/18/2019: $24.16

06/17/2019: $24.19

06/16/2019: $20.27

06/14/2019: $24.93

06/13/2019: $24.96

06/12/2019: $26.84

06/10/2019: $24.2

06/08/2019: $23.72

06/07/2019: $25.28

06/06/2019: $24.18

06/05/2019: $20.25

06/02/2019: $24.02

06/01/2019: $19.94

05/31/2019: $24.1

05/30/2019: $20.19

05/29/2019: $24.18

05/27/2019: $23.43

05/24/2019: $24.18

05/23/2019: $19.59

05/22/2019: $24.19

05/21/2019: $24.73

05/20/2019: $24.99

05/19/2019: $23.41

05/18/2019: $26.98

05/16/2019: $23.43

05/13/2019: $24.15

05/12/2019: $23.67

05/08/2019: $24.12

05/07/2019: $19.52

05/06/2019: $23.46

05/02/2019: $23.42

05/01/2019: $21.92

04/27/2019: $23.43

04/21/2019: $19.87

04/18/2019: $23.43

04/15/2019: $23.5

04/13/2019: $19.01

04/10/2019: $23.5

04/07/2019: $24.63

04/05/2019: $23.67

04/03/2019: $24.63

04/02/2019: $23.63

03/28/2019: $24.63

03/27/2019: $19.27

03/26/2019: $20.97

03/24/2019: $19.27

03/22/2019: $19.66

03/19/2019: $22.01

03/18/2019: $23.74

03/17/2019: $24.12

03/15/2019: $19.36

03/14/2019: $19.79

03/13/2019: $24.63

03/12/2019: $23.24

03/11/2019: $23.19

03/10/2019: $22.3

03/08/2019: $22

03/06/2019: $23.24

03/03/2019: $23.34

03/02/2019: $23.66

03/01/2019: $24.63

02/27/2019: $23.69

02/26/2019: $23.93

02/25/2019: $24.18

02/23/2019: $24.47

02/20/2019: $23.49

02/19/2019: $24.47

02/12/2019: $25.13

02/06/2019: $24.64

02/05/2019: $24.67

01/29/2019: $23.46

01/23/2019: $24.19

01/22/2019: $19.53

01/21/2019: $22.72

01/11/2019: $19.51

01/09/2019: $19.39

01/06/2019: $23.98

01/05/2019: $19.36

01/02/2019: $20.66

12/30/2018: $23.65

12/29/2018: $23.35

12/28/2018: $23.65

12/27/2018: $20

12/26/2018: $19.2

12/25/2018: $20

12/22/2018: $19.15

12/20/2018: $20

12/19/2018: $19.11

12/18/2018: $22.19

12/10/2018: $23.65

12/09/2018: $19.18

12/06/2018: $24.19

12/05/2018: $21.37

12/04/2018: $24.19

12/01/2018: $19.38

11/23/2018: $27.15

11/22/2018: $23.06

11/20/2018: $27.15

11/19/2018: $28.44

11/18/2018: $23.15

11/16/2018: $24.01

11/14/2018: $19.48

11/13/2018: $23.18

11/11/2018: $24.01

11/08/2018: $19.48

11/05/2018: $24

11/03/2018: $24.19

11/02/2018: $22.84

11/01/2018: $27.64

10/31/2018: $27.58

10/29/2018: $27.64

10/28/2018: $22.78

10/26/2018: $25.22

10/25/2018: $28.42

10/23/2018: $26.21

10/22/2018: $20.34

10/18/2018: $27.63

10/17/2018: $23.49

10/16/2018: $26.24

10/15/2018: $27.63

10/14/2018: $26.24

10/13/2018: $24.01

10/10/2018: $19.27

10/09/2018: $23.28

10/08/2018: $22.78

10/05/2018: $24.12

10/04/2018: $19.25

10/03/2018: $23.15

09/27/2018: $23.49

09/24/2018: $21.04

09/23/2018: $24.67

09/22/2018: $24.98

09/20/2018: $23.49

09/19/2018: $24.98

09/18/2018: $18.98

09/13/2018: $21.46

09/02/2018: $23.49

08/30/2018: $23.66

08/26/2018: $23.93

08/25/2018: $22.01

08/23/2018: $23.24

08/22/2018: $23.95

08/21/2018: $24.9

08/20/2018: $24.93

08/18/2018: $23.32

08/14/2018: $24.93

08/13/2018: $23.32

08/12/2018: $23.5

08/10/2018: $23.63

08/09/2018: $23.72

08/08/2018: $23.87

08/07/2018: $24

08/04/2018: $23.32

08/01/2018: $24.31

07/31/2018: $24.19

07/30/2018: $23.27

07/29/2018: $23.55

07/27/2018: $23.26

07/26/2018: $23.31

07/25/2018: $19.07

07/22/2018: $23.29

07/20/2018: $24.93

07/19/2018: $24

07/11/2018: $24.93

07/10/2018: $24.1

07/07/2018: $24.93

07/06/2018: $19.13

07/05/2018: $23.88

07/04/2018: $20.59

07/01/2018: $24.26

06/30/2018: $25.09

06/24/2018: $24.73

06/18/2018: $24.96

06/17/2018: $23.57

06/16/2018: $23.64

06/15/2018: $23.51

06/12/2018: $23.98

06/04/2018: $24.98

05/29/2018: $24.97

05/22/2018: $25.09

05/20/2018: $25.59

05/19/2018: $26.47

05/18/2018: $26.61

05/16/2018: $26.42

05/15/2018: $26.37

05/13/2018: $26.4

05/12/2018: $25.63

05/05/2018: $25.09

05/02/2018: $21.97

04/29/2018: $24.98

04/28/2018: $25.09

04/26/2018: $22.33

04/24/2018: $24.98

04/20/2018: $25.49

04/11/2018: $25.75

04/10/2018: $26.8

04/09/2018: $26.31

04/08/2018: $22.83

04/03/2018: $26.28

03/23/2018: $27.05

03/21/2018: $28.04

03/16/2018: $26.94

03/12/2018: $27.5

03/10/2018: $28.08

03/09/2018: $28.95

03/07/2018: $25.59

03/04/2018: $22.31

02/22/2018: $22.77

02/17/2018: $22.33

02/10/2018: $21.9

02/06/2018: $21.47

02/02/2018: $21.05

01/30/2018: $20.64

01/21/2018: $20.24

01/20/2018: $19.85

01/18/2018: $20.68

01/10/2018: $21.55

01/03/2018: $22.14

12/27/2017: $22.61

12/26/2017: $23.31

12/23/2017: $23.35

12/06/2017: $23.33

11/29/2017: $23.35

11/28/2017: $20.98

11/27/2017: $24.06

11/25/2017: $23.59

11/22/2017: $20.98

11/19/2017: $24.74

11/15/2017: $24.26

11/11/2017: $23.79

11/08/2017: $18.3

11/07/2017: $17.95

11/06/2017: $17.6

11/03/2017: $17.26

10/31/2017: $16.93

10/07/2017: $25.67

10/05/2017: $17.91

10/04/2017: $17.85

09/30/2017: $25.67

09/29/2017: $17.85

09/28/2017: $20.35

09/27/2017: $20.25

09/25/2017: $17.95

09/17/2017: $17.6

09/12/2017: $17.26

09/08/2017: $16.93

09/04/2017: $17.08

09/03/2017: $16.75

09/02/2017: $17.27

09/01/2017: $17.81

08/31/2017: $18.37

08/29/2017: $18.94

08/28/2017: $18.74

08/27/2017: $18.38

08/26/2017: $20.35

08/25/2017: $20.79

08/23/2017: $22.09

08/18/2017: $21.66

08/15/2017: $21.24

08/12/2017: $19.85

08/11/2017: $20.87

08/08/2017: $20.83

08/07/2017: $20.87

08/06/2017: $21.98

08/05/2017: $22.01

08/03/2017: $21.99

07/31/2017: $22.01

07/29/2017: $18.48

07/28/2017: $22.01

07/26/2017: $21.98

07/24/2017: $18.62

07/21/2017: $21.01

07/19/2017: $21.98

07/18/2017: $18.37

07/15/2017: $21.98

07/09/2017: $22.75

07/03/2017: $22

06/28/2017: $23

06/27/2017: $18.04

06/26/2017: $23

06/24/2017: $24.94

06/22/2017: $26.89

06/21/2017: $25.61

06/20/2017: $24.88

06/15/2017: $25.61

06/12/2017: $25.13

06/10/2017: $21.01

06/08/2017: $25.13

06/06/2017: $18.95

06/03/2017: $24.64

05/31/2017: $18.95

05/25/2017: $18.58

05/17/2017: $18.22

05/09/2017: $17.87

05/08/2017: $20.36

05/07/2017: $18.08

05/02/2017: $17.53

04/25/2017: $22.96

04/20/2017: $22.51

04/19/2017: $20.97

04/18/2017: $22.51

04/17/2017: $23.44

04/15/2017: $19.97

04/14/2017: $20.97

04/11/2017: $23.44

04/09/2017: $21.51

04/05/2017: $22.74

04/04/2017: $18.27

04/02/2017: $22.74

04/01/2017: $18.98

03/31/2017: $18.27

03/30/2017: $18.31

03/29/2017: $18.67

03/27/2017: $24.24

03/19/2017: $23.77

03/12/2017: $23.31

03/05/2017: $23.55

03/01/2017: $26.61

02/26/2017: $24.03

02/18/2017: $23.56

02/11/2017: $23.1

02/05/2017: $22.65

01/29/2017: $23.35

01/18/2017: $24.08

01/14/2017: $25.09

01/07/2017: $26.14

12/26/2016: $27.23

12/18/2016: $28.08

11/23/2016: $28.95

11/19/2016: $23.88

11/12/2016: $23.42

10/06/2016: $22.96

09/29/2016: $22.51

09/22/2016: $22.07

09/14/2016: $21.64

09/07/2016: $21.22

08/31/2016: $20.81

08/24/2016: $21.68

08/09/2016: $22.59

08/05/2016: $26.55

08/02/2016: $22.82

07/26/2016: $23.53

07/18/2016: $24.26

07/10/2016: $25.02

07/03/2016: $24.53

06/26/2016: $24.05

06/18/2016: $23.58

06/11/2016: $24.07

06/04/2016: $24.57

05/28/2016: $25.08

05/20/2016: $25.6

05/14/2016: $26.13

05/05/2016: $26.67

04/28/2016: $27.22

04/22/2016: $27.5

04/15/2016: $28.95

04/10/2016: $28.24

04/05/2016: $21.72

03/30/2016: $21.95

03/23/2016: $22.18

03/16/2016: $22.41

03/06/2016: $22.19

02/25/2016: $22.42

02/16/2016: $22.65

02/08/2016: $23.1

02/01/2016: $22.88

01/26/2016: $23.35

01/18/2016: $24.59

01/11/2016: $25.62

01/06/2016: $26.97

12/24/2015: $28.1

12/14/2015: $17.89

12/08/2015: $17.32

11/30/2015: $17.41

11/23/2015: $17.5

11/16/2015: $17.59

11/10/2015: $17.34

11/02/2015: $17.17

10/27/2015: $17

10/21/2015: $16.84

10/14/2015: $16.75

10/07/2015: $16.91

09/23/2015: $16.75

09/16/2015: $16.58

08/26/2015: $16.41

08/23/2015: $16.67

08/16/2015: $17.74

08/08/2015: $18.49

08/02/2015: $19.26

07/25/2015: $20.49

07/18/2015: $20.7

07/10/2015: $20.91

07/02/2015: $21.13

06/24/2015: $20.92

06/18/2015: $20.72

06/15/2015: $20.52

06/12/2015: $20.32

06/10/2015: $20.12

06/05/2015: $19.74

06/01/2015: $19.55

05/29/2015: $19.36

05/24/2015: $19.17

05/16/2015: $18.99

05/05/2015: $18.8

04/28/2015: $18.99

04/21/2015: $19.19

04/14/2015: $19.39

04/08/2015: $19.59

04/01/2015: $19.79

03/26/2015: $19.99

03/03/2015: $19.95

02/24/2015: $20.16

02/16/2015: $19.97

02/10/2015: $19.78

02/03/2015: $19.59

01/27/2015: $19.4

01/20/2015: $19.5

01/19/2015: $19.6

01/18/2015: $19.7

01/12/2015: $19.8

01/04/2015: $19.9

12/27/2014: $20.01

12/21/2014: $20.12

11/30/2014: $20.23

11/23/2014: $20.37

11/15/2014: $19.21

11/08/2014: $19.41

10/20/2014: $19.61

10/12/2014: $19.81

10/06/2014: $19.62

09/28/2014: $19.43

09/21/2014: $19.63

09/04/2014: $19.83

08/29/2014: $20.03

08/27/2014: $20.24

08/20/2014: $20.45

08/15/2014: $20.66

08/11/2014: $20.87

08/07/2014: $21.09

08/01/2014: $21.31

07/28/2014: $21.53

07/24/2014: $21.75

07/20/2014: $20.92

07/14/2014: $21.14

07/12/2014: $21.36

07/10/2014: $21.58

07/06/2014: $21.39

07/04/2014: $20.98

07/03/2014: $20.78

06/30/2014: $20.38

06/29/2014: $20.18

06/27/2014: $19.8

06/26/2014: $19.61

06/25/2014: $19.42

06/24/2014: $19.23

06/23/2014: $19.04

06/21/2014: $18.86

06/19/2014: $18.68

06/17/2014: $18.5

06/15/2014: $18.32

06/13/2014: $18.14

06/11/2014: $17.97

06/08/2014: $17.8

06/06/2014: $17.63

06/03/2014: $17.46

05/31/2014: $17.29

05/29/2014: $17.12

05/27/2014: $19.96

05/25/2014: $19.48

05/23/2014: $19.01

05/21/2014: $18.83

05/19/2014: $18.65

05/13/2014: $18.84

05/10/2014: $18.72

05/07/2014: $18.36

05/05/2014: $18.18

05/02/2014: $18

04/30/2014: $17.83

04/26/2014: $18.01

04/22/2014: $18.2

04/17/2014: $18.03

04/12/2014: $17.86

04/06/2014: $17.69

04/03/2014: $18.05

04/02/2014: $18.1

03/31/2014: $17.93

03/30/2014: $17.76

03/29/2014: $17.59

03/27/2014: $17.42

03/25/2014: $17.25

03/23/2014: $17.12

03/21/2014: $17.25

03/16/2014: $17.12

03/15/2014: $17.3

03/09/2014: $17.12

03/07/2014: $17.47

03/06/2014: $17.65

03/05/2014: $17.62

03/04/2014: $17.45

03/03/2014: $17.63

03/02/2014: $17.81

03/01/2014: $17.99

02/27/2014: $18.37

02/26/2014: $18.75

02/24/2014: $18.94

02/22/2014: $19.14

02/20/2014: $19.34

02/19/2014: $19.54

02/16/2014: $19.74

02/15/2014: $19.95

02/13/2014: $20.16

02/11/2014: $20.37

02/09/2014: $20.58

02/07/2014: $20.38

02/05/2014: $20.59

02/04/2014: $20.8

02/01/2014: $21.02

01/30/2014: $21.13

01/28/2014: $21.24

01/27/2014: $21.35

01/24/2014: $21.57

01/22/2014: $21.68

01/21/2014: $21.79

01/18/2014: $21.9

01/16/2014: $22.02

01/13/2014: $22.14

01/11/2014: $19.78

01/09/2014: $19.88

01/06/2014: $19.99

01/03/2014: $20.1

01/01/2014: $20.2

12/30/2013: $20.31

12/28/2013: $20.42

12/27/2013: $20.53

12/24/2013: $20.64

12/21/2013: $20.75

12/19/2013: $20.55

12/17/2013: $20.35

12/14/2013: $20.56

12/11/2013: $20.98

12/09/2013: $21.2

12/08/2013: $21.42

12/05/2013: $21.64

12/03/2013: $21.86

11/30/2013: $22.32

11/25/2013: $22.55

11/24/2013: $22.78

11/22/2013: $23.01

11/21/2013: $23.49

11/19/2013: $23.98

11/05/2013: $24.48

11/04/2013: $24.98

11/02/2013: $25.48

10/25/2013: $26.1

10/24/2013: $26.36

10/21/2013: $26.1

10/18/2013: $26.22

10/15/2013: $26.76

10/13/2013: $26.24

10/11/2013: $25.98

10/04/2013: $24.48

10/03/2013: $24.98

10/02/2013: $25.7

09/30/2013: $25.45

09/29/2013: $25.2

09/27/2013: $24.96

09/26/2013: $24.72

09/23/2013: $24.48

09/22/2013: $24.98

09/20/2013: $25.48

09/19/2013: $27.5

09/18/2013: $26.48

09/13/2013: $25.98

09/12/2013: $27.2

09/11/2013: $26.98

09/09/2013: $26.48

09/06/2013: $27.5

09/05/2013: $24.31

09/04/2013: $24.8

09/03/2013: $24.56

09/02/2013: $24.32

09/01/2013: $23.86

08/30/2013: $23.63

08/29/2013: $23.87

08/28/2013: $24.12

08/26/2013: $23.89

08/24/2013: $23.43

08/23/2013: $23.2

08/22/2013: $22.97

08/21/2013: $22.75

08/20/2013: $22.53

08/19/2013: $22.31

08/18/2013: $22.09

08/16/2013: $22.32

08/15/2013: $22.55

08/14/2013: $22.78

08/12/2013: $23.01

08/11/2013: $23.25

08/10/2013: $23.49

08/08/2013: $24.08

08/07/2013: $24.33

08/04/2013: $25.08

08/03/2013: $25.34

07/31/2013: $26.13

07/26/2013: $26.4

07/25/2013: $26.67

07/23/2013: $26.94

07/22/2013: $27.22

07/16/2013: $27.5

07/14/2013: $27.23

07/13/2013: $26.96

07/12/2013: $26.7

07/11/2013: $26.44

07/10/2013: $26.18

07/09/2013: $25.93

07/08/2013: $25.68

07/07/2013: $25.43

07/06/2013: $25.18

07/05/2013: $24.93

07/04/2013: $24.69

07/03/2013: $24.45

07/02/2013: $24.21

07/01/2013: $23.97

06/30/2013: $23.74

06/29/2013: $23.51

06/28/2013: $23.28

06/26/2013: $22.83

06/24/2013: $22.39

06/23/2013: $22.17

06/22/2013: $21.96

06/21/2013: $21.75

06/20/2013: $21.54

06/19/2013: $21.33

06/18/2013: $21.12

06/11/2013: $23.44

05/21/2013: $27.5

05/20/2013: $27.35

05/19/2013: $27.08

05/18/2013: $26.82

05/16/2013: $26.56

05/14/2013: $26.04

05/13/2013: $25.79

05/12/2013: $25.54

05/11/2013: $25.29

05/10/2013: $21.43

05/08/2013: $18.16

05/07/2013: $17.98

05/06/2013: $17.81

05/05/2013: $17.64

05/04/2013: $17.47

05/03/2013: $17.3

05/02/2013: $27.39

04/30/2013: $27.12

04/28/2013: $26.6

04/27/2013: $26.08

04/26/2013: $25.83

04/25/2013: $25.58

04/24/2013: $25.33

04/23/2013: $25.09

04/22/2013: $24.85

04/20/2013: $24.61

04/19/2013: $24.37

04/18/2013: $24.13

04/12/2013: $23.44

04/11/2013: $23.99

04/10/2013: $27.5

04/08/2013: $25.14

04/07/2013: $22.85

04/05/2013: $20.77

04/04/2013: $18.34

04/03/2013: $17.81

03/30/2013: $17.3

03/29/2013: $18.34

03/28/2013: $17.81

03/27/2013: $17.3

03/23/2013: $19.24

03/17/2013: $18.84

03/14/2013: $18.44

03/11/2013: $18.75

03/09/2013: $18.94

03/08/2013: $19.14

03/05/2013: $19.24

03/04/2013: $19.14

03/02/2013: $19.34

03/01/2013: $19.54

02/28/2013: $19.74

02/27/2013: $19.95

02/26/2013: $19.76

02/25/2013: $19.57

02/24/2013: $19.38

02/22/2013: $19.19

02/20/2013: $19.01

02/18/2013: $18.83

02/17/2013: $18.65

02/16/2013: $18.47

02/14/2013: $18.29

02/13/2013: $18.11

02/12/2013: $17.94

02/09/2013: $17.6

02/08/2013: $17.43

02/06/2013: $17.26

02/05/2013: $17.09

02/04/2013: $16.93

01/31/2013: $16.75

01/29/2013: $16.18

01/28/2013: $16.27

01/26/2013: $16.36

01/25/2013: $16.45

01/23/2013: $16.54

01/22/2013: $16.63

01/20/2013: $16.72

01/19/2013: $16.81

01/17/2013: $16.9

01/16/2013: $16.99

01/12/2013: $17.08

01/09/2013: $17.26

01/08/2013: $17.35

01/06/2013: $17.44

01/04/2013: $17.53

01/02/2013: $17.62

12/31/2012: $17.71

12/29/2012: $17.81

12/27/2012: $17.91

12/25/2012: $18.01

11/27/2012: $18.11

11/25/2012: $21.53

11/24/2012: $21.32

11/23/2012: $21.11

11/22/2012: $20.91

11/21/2012: $20.71

11/19/2012: $20.51

11/18/2012: $20.31

11/17/2012: $20.52

11/16/2012: $20.73

11/13/2012: $20.53

11/11/2012: $20.33

11/06/2012: $20.13

11/05/2012: $19.95

11/03/2012: $19.57

10/31/2012: $19.38

10/28/2012: $19.2

10/26/2012: $19.6

10/25/2012: $19.8

10/24/2012: $20

10/22/2012: $20.21

10/20/2012: $20.42

10/18/2012: $20.63

10/17/2012: $20.84

10/16/2012: $21.05

10/15/2012: $21.27

10/13/2012: $21.49

09/29/2012: $21.71

09/27/2012: $18.11

09/26/2012: $16.55

09/25/2012: $16.39

09/24/2012: $16.23

09/23/2012: $16.07

09/22/2012: $15.91

09/21/2012: $15.76

09/20/2012: $15.92

09/07/2012: $15.76

09/06/2012: $15.6

08/31/2012: $15.44

08/30/2012: $15.6

08/27/2012: $15.76

08/26/2012: $15.87

08/25/2012: $16.03

08/24/2012: $16.2

08/23/2012: $16.37

08/16/2012: $16.54

08/14/2012: $17.23

08/11/2012: $16.82

08/09/2012: $17.34

08/08/2012: $16.94

08/07/2012: $17.12

08/04/2012: $17.3

08/02/2012: $17.48

08/01/2012: $17.66

07/29/2012: $17.84

07/28/2012: $19.28

07/26/2012: $18.02

07/24/2012: $16.84

07/18/2012: $24.43

07/14/2012: $24.19

07/13/2012: $23.96

07/11/2012: $23.73

07/08/2012: $23.5

07/06/2012: $23.27

07/03/2012: $23.04

07/01/2012: $22.6

06/29/2012: $22.38

06/23/2012: $22.16

06/21/2012: $21.95

06/19/2012: $21.74

06/17/2012: $21.53

06/14/2012: $21.32

06/11/2012: $20.91

06/09/2012: $20.71

06/06/2012: $20.51

06/03/2012: $20.31

06/01/2012: $20.11

05/23/2012: $19.91

05/16/2012: $19.72

05/14/2012: $19.53

05/12/2012: $19.34

05/08/2012: $19.15

05/02/2012: $18.97

04/25/2012: $18.79

04/19/2012: $18.61

04/15/2012: $18.43

04/10/2012: $18.25

04/04/2012: $18.07

03/28/2012: $17.9

03/23/2012: $17.73

03/15/2012: $17.56

03/08/2012: $17.39

03/01/2012: $17.22

02/23/2012: $17.05

02/18/2012: $16.89

02/09/2012: $16.73

02/07/2012: $16.57

02/03/2012: $16.49

01/25/2012: $16.41

01/20/2012: $16.33

01/19/2012: $19.51

01/15/2012: $16.25

01/13/2012: $22.45

01/12/2012: $16.25

01/10/2012: $22.45

01/08/2012: $16.25

01/07/2012: $19.35

12/07/2011: $22.45

12/03/2011: $22.91

11/15/2011: $24.22

11/02/2011: $25.75

09/27/2011: $16.84

08/10/2011: $16.28

08/09/2011: $16.84

07/30/2011: $17.24

07/27/2011: $17.65

06/11/2011: $16.84