| DATE | OPEN | HIGH | LOW | CLOSE | VOLUME |
|---|---|---|---|---|---|
December 2011 | $37.48 | $40.54 | $37.16 | $40.02 | 39,193,470 |
November 2011 | $38.40 | $41.40 | $34.66 | $37.86 | 35,294,066 |
October 2011 | $32.30 | $42.02 | $31.65 | $40.15 | 61,355,193 |
September 2011 | $33.67 | $36.17 | $30.71 | $33.08 | 46,982,164 |
August 2011 | $34.60 | $34.76 | $29.35 | $33.78 | 56,928,943 |
July 2011 | $35.62 | $37.15 | $32.29 | $34.14 | 50,517,410 |
June 2011 | $37.11 | $37.40 | $32.80 | $35.39 | 29,802,639 |
May 2011 | $40.20 | $40.78 | $35.79 | $37.36 | 42,738,443 |
April 2011 | $41.71 | $42.33 | $35.92 | $39.99 | 56,403,369 |
March 2011 | $41.75 | $43.40 | $36.86 | $42.05 | 36,256,609 |
February 2011 | $40.67 | $42.87 | $39.77 | $41.20 | 41,109,577 |
January 2011 | $36.68 | $40.70 | $33.22 | $39.70 | 70,161,715 |
December 2010 | $31.84 | $36.73 | $31.82 | $36.23 | 33,866,427 |
November 2010 | $31.68 | $32.97 | $29.83 | $30.84 | 45,967,327 |
October 2010 | $28.48 | $32.12 | $27.55 | $31.34 | 39,900,339 |
September 2010 | $24.21 | $29.15 | $24.03 | $28.10 | 33,375,970 |
August 2010 | $31.02 | $31.41 | $23.29 | $23.37 | 53,128,148 |
July 2010 | $26.34 | $31.04 | $25.73 | $30.42 | 56,467,672 |
June 2010 | $26.70 | $29.68 | $25.51 | $25.96 | 42,653,225 |
May 2010 | $30.91 | $31.63 | $25.20 | $26.71 | 53,603,109 |
April 2010 | $34.05 | $34.34 | $30.80 | $30.86 | 35,466,521 |
March 2010 | $28.99 | $33.91 | $28.99 | $33.45 | 38,981,622 |
February 2010 | $29.60 | $30.86 | $27.94 | $28.90 | 33,441,718 |
January 2010 | $32.61 | $33.18 | $29.05 | $29.29 | 44,593,153 |
December 2009 | $29.79 | $32.58 | $29.63 | $31.96 | 17,344,615 |
