
| DATE | OPEN | HIGH | LOW | CLOSE | VOLUME |
|---|---|---|---|---|---|
December 2011 | $58.85 | $60.12 | $50.06 | $55.19 | 32,233,500 |
November 2011 | $54.05 | $59.46 | $49.37 | $59.17 | 20,724,700 |
October 2011 | $57.13 | $66.19 | $53.80 | $55.06 | 27,384,900 |
September 2011 | $59.19 | $79.56 | $57.18 | $57.95 | 35,667,900 |
August 2011 | $53.77 | $63.18 | $42.65 | $58.78 | 30,218,800 |
July 2011 | $56.22 | $61.02 | $51.29 | $52.83 | 14,231,800 |
June 2011 | $59.57 | $60.79 | $51.16 | $56.47 | 19,989,500 |
May 2011 | $50.90 | $60.12 | $46.40 | $59.76 | 22,633,900 |
April 2011 | $44.59 | $71.43 | $41.65 | $50.82 | 44,174,700 |
March 2011 | $36.27 | $44.92 | $35.82 | $44.75 | 10,827,500 |
February 2011 | $33.55 | $37.94 | $33.26 | $36.12 | 11,849,500 |
January 2011 | $32.55 | $35.72 | $32.18 | $33.54 | 8,992,300 |