| DATE | OPEN | HIGH | LOW | CLOSE | VOLUME |
|---|---|---|---|---|---|
December 2011 | $65.23 | $69.03 | $64.80 | $68.57 | 110,500,700 |
November 2011 | $62.62 | $65.30 | $61.88 | $65.28 | 109,863,900 |
October 2011 | $59.31 | $63.66 | $56.80 | $62.98 | 138,108,100 |
September 2011 | $61.23 | $61.79 | $56.74 | $59.57 | 165,750,900 |
August 2011 | $58.95 | $61.88 | $55.26 | $61.33 | 200,669,000 |
July 2011 | $56.71 | $60.35 | $56.70 | $58.27 | 117,018,200 |
June 2011 | $54.89 | $57.21 | $53.90 | $56.81 | 128,508,800 |
May 2011 | $52.43 | $55.56 | $52.30 | $54.94 | 120,036,800 |
April 2011 | $51.03 | $52.56 | $50.60 | $52.37 | 97,983,500 |
March 2011 | $50.63 | $51.66 | $48.75 | $50.89 | 143,318,900 |
February 2011 | $49.24 | $50.74 | $48.48 | $50.61 | 135,858,400 |
January 2011 | $51.15 | $51.47 | $47.86 | $48.87 | 233,975,300 |
December 2010 | $52.50 | $53.69 | $50.38 | $50.92 | 114,256,400 |
November 2010 | $51.38 | $52.56 | $50.76 | $51.94 | 118,058,200 |
October 2010 | $49.39 | $52.59 | $48.97 | $51.19 | 110,920,200 |
September 2010 | $48.66 | $50.20 | $48.48 | $49.04 | 139,333,600 |
August 2010 | $46.06 | $48.39 | $45.63 | $48.09 | 129,701,400 |
July 2010 | $43.59 | $46.74 | $42.67 | $45.56 | 133,382,100 |
June 2010 | $43.27 | $46.11 | $42.99 | $43.03 | 149,278,100 |
May 2010 | $45.92 | $46.54 | $42.47 | $43.69 | 185,467,000 |
April 2010 | $43.45 | $46.46 | $43.45 | $45.73 | 135,971,400 |
March 2010 | $41.45 | $43.73 | $40.98 | $43.23 | 153,461,200 |
February 2010 | $40.36 | $42.24 | $40.18 | $41.37 | 150,643,900 |
January 2010 | $40.24 | $41.62 | $39.23 | $40.11 | 158,366,700 |
December 2009 | $40.88 | $41.15 | $38.57 | $40.11 | 153,243,600 |