Year
|
Beginning Price
|
Ending Price
|
Gain or Loss
|
Percent Gain or Loss
|
2000
|
20.9375
|
17.75
|
-3.1875
|
-15.22%
|
2001
|
17.75
|
23.20
|
5.45
|
30.70%
|
2002
|
23.20
|
18.25
|
-4.95
|
-21.34%
|
2003
|
18.25
|
25.66
|
7.41
|
40.60%
|
2004
|
25.66
|
28.78
|
3.12
|
12.16%
|
2005
|
28.78
|
29.90
|
1.12
|
3.89%
|
2006
|
29.90
|
33.31
|
3.41
|
11.40%
|
2007
|
33.31
|
36.75
|
3.44
|
10.33%
|
2008
|
36.75
|
26.07
|
-10.68
|
-29.06%
|
2009
|
26.07
|
30.88
|
4.81
|
18.45%
|
2010
|
30.88
|
37.93
|
7.05
|
22.83%
|
2011
|
37.93
|
47.20*
|
9.27
|
24.44%
|
*In 2011, Lonza (a Swiss company), acquired Arch Chemical for $47.20 per share.