8/16/2008

23.4

7/30/2006

22

10/4/2010

20.92

8/9/1997

20.8

7/15/2004

20.28

2/12/2005

19.77

8/26/2000

19.54

9/7/2002

19.46

7/13/2001

18.95

8/19/1999

18.61

7/18/2010

18.3

9/1/2003

18.24

7/14/2021

17.79