| DATE | OPEN | HIGH | LOW | CLOSE | VOLUME |
|---|---|---|---|---|---|
December 2011 | $57.99 | $61.19 | $56.01 | $60.01 | 159,952,000 |
November 2011 | $56.78 | $60.99 | $52.05 | $57.99 | 224,716,300 |
October 2011 | $51.44 | $61.56 | $48.50 | $58.78 | 207,893,500 |
September 2011 | $55.40 | $56.28 | $49.55 | $51.81 | 233,101,200 |
August 2011 | $58.89 | $58.91 | $48.46 | $55.31 | 314,157,800 |
July 2011 | $57.01 | $60.92 | $56.63 | $57.74 | 142,457,300 |
June 2011 | $58.14 | $58.26 | $53.85 | $57.09 | 175,644,000 |
May 2011 | $60.31 | $60.36 | $55.29 | $58.24 | 170,799,200 |
April 2011 | $59.65 | $60.56 | $56.76 | $60.28 | 132,781,700 |
March 2011 | $57.33 | $60.40 | $53.76 | $59.21 | 206,698,800 |
February 2011 | $52.28 | $57.25 | $52.03 | $57.15 | 181,393,300 |
January 2011 | $50.11 | $52.04 | $49.27 | $51.90 | 150,552,000 |
December 2010 | $44.91 | $50.51 | $44.70 | $49.89 | 157,936,600 |
November 2010 | $45.08 | $46.72 | $43.96 | $44.27 | 213,965,000 |
October 2010 | $44.39 | $46.51 | $43.74 | $44.78 | 177,635,700 |
September 2010 | $40.85 | $44.55 | $40.79 | $43.94 | 168,273,400 |
August 2010 | $41.69 | $42.69 | $39.34 | $40.16 | 197,948,600 |
July 2010 | $36.62 | $41.02 | $35.89 | $40.93 | 233,122,800 |
June 2010 | $39.51 | $41.49 | $36.41 | $36.45 | 295,860,300 |
May 2010 | $43.61 | $44.38 | $38.02 | $39.67 | 298,278,800 |
April 2010 | $40.65 | $44.24 | $40.62 | $43.33 | 207,104,600 |
March 2010 | $38.65 | $40.51 | $38.52 | $40.35 | 215,133,500 |
February 2010 | $38.32 | $39.58 | $36.66 | $38.47 | 229,392,800 |
January 2010 | $41.22 | $42.74 | $37.82 | $38.01 | 207,150,500 |
December 2009 | $41.69 | $41.86 | $40.16 | $40.58 | 170,004,300 |
