Feb-10

$3.48

$3.51

Jan-10

$3.43

$3.47

Dec-09

$3.58

$3.57

Nov-09

$3.54

$3.47

Oct-09

$3.66

$3.57

Sep-09

$3.72

$3.65

Aug-09

$3.44

$3.45

Jul-09

$3.21

$3.27

Jun-09

$2.97

$3.10

May-09

$2.80

$2.99

Apr-09

$2.90

$3.08

Mar-09

$2.73

$2.96

Feb-09

$2.49

$2.78

Jan-09

$2.72

$2.94

Dec-08

$2.86

$3.04

Nov-08

$2.80

$2.99

Oct-08

$3.07

$3.21

Sep-08

$3.46

$3.50

Aug-08

$3.66

$3.64

July-08

$3.49

$3.54

June-08

$3.47

$3.53

May-08

$3.93

$3.85

Apr-08

$3.96

$3.86

Mar-08

$4.03

$3.94

Feb-08

$4.17

$4.03

Jan-08

$4.44

$4.21

Dec-07

$5.03

$4.62

Nov-07

$5.17

$4.70

Oct-07

$5.36

$4.82

Sep-07

$5.37

$4.83

Aug-07

$5.17

$4.68

Jul-07

$5.05

$4.59

Jun-07

$5.22

$4.67

May-07

$5.35

$4.76

Apr-07

$5.35

$4.72

Mar-07

$5.33

$4.72

Feb-07

$5.23

$4.62

Jan-07

$5.20

$4.59

Dec-06

$5.04

$4.47

Nov-06

$4.92

$4.35

Oct-06

$4.77

$4.24

Sep-06

$4.69

$4.20

Aug-06

$4.54

$4.08

Jul-06

$4.37

$3.96

Jun-06

$4.43

$3.99

May-06

$4.34

$3.93

Apr-06

$4.64

$4.14

Mar-06

$4.52

$4.06

Feb-06

$4.39

$3.94

Jan-06

$4.27

$3.85

Dec-05

$4.24

$3.83

Nov-05

$4.21

$3.78

Oct-05

$4.13

$3.73

Sep-05

$4.27

$3.81

Aug-05

$4.09

$3.67

Jul-05

$4.02

$3.62

Jun-05

$3.92

$3.54

May-05

$4.34

$3.93

Apr-05

$3.75

$3.42

Mar-05

$3.90

$3.53

Feb-05

$3.91

$3.54

Jan-05

$3.91

$3.54

Dec-04

$3.88

$3.52

Nov-04

$3.71

$3.40

Aug-04

$3.43

$3.20

Jul-04

$3.41

$3.18

Jun-04

$3.46

$3.21

May-04

$3.38

$3.15

Apr-04

$3.42

$3.19

Mar-04

$3.42

$3.18

Feb-04

$3.33

$3.12

Jan-04

$3.28

$3.08

Dec-03

$3.28

$3.08

Nov-03

$3.18

$3.01

Oct-03

$3.28

$3.08

Sep-03

$3.26

$3.08

Aug-03

$3.25

$3.07

Jul-03

$3.14

$2.98

Jun-03

$3.05

$2.91

May-03

$3.00

$2.87

Apr-03

$3.10

$2.99

Mar-03

$2.98

$2.85

Feb-03

$2.86

$2.76

Jan-03

$3.04

$2.89

Dec-02

$3.07

$2.92

Nov-02

$3.14

$2.96

Oct-02

$3.15

$2.96

Sep-02

$3.18

$3.00

Aug-02

$3.34

$3.11

Jul-02

$3.28

$3.06

Jun-02

$3.45

$3.19

May-02

$3.58

$3.29

Apr-02

$3.53

$3.23

Mar-02

$3.65

$3.34

Feb-02

$3.67

$3.34

Jan-02

$3.71

$3.37

Dec-01

$3.67

$3.34

Nov-01

$3.58

$3.27

Oct-01

$3.51

$3.19

Sep-01

$3.27

$3.01

Aug-01

$3.62

$3.31

Jul-01

$3.61

$3.27

Jun-01

$3.69

$3.34

May-01

$3.52

$3.20

Apr-01

$3.40

$3.11

Mar-01

$3.31

$3.04

Feb-01

$3.44

$3.14

Jan-01

$3.42

$3.11

Dec-00

$3.34

$3.05

Nov-00

$3.36

$3.08

Oct-00

$3.29

$3.07

Sep-00

$3.31

$3.06

Aug-00

$3.30

$3.05

Jul-00

$3.23

$2.98

Jun-00

$3.24

$2.99

May-00

$3.04

$2.83

Apr-00

$3.02

$2.80

Mar-00

$3.01

$2.81

Feb-00

$3.07

$2.79

Jan-00

$3.04

$2.78