| DATE | OPEN | HIGH | LOW | CLOSE | VOLUME |
|---|---|---|---|---|---|
December 2011 | $46.59 | $49.74 | $45.69 | $49.23 | 380,150,300 |
November 2011 | $43.78 | $46.78 | $42.93 | $46.72 | 444,321,100 |
October 2011 | $41.60 | $47.46 | $39.96 | $45.09 | 514,198,800 |
September 2011 | $42.82 | $43.30 | $39.22 | $41.94 | 550,523,400 |
August 2011 | $46.36 | $46.57 | $38.45 | $42.74 | 774,165,900 |
July 2011 | $46.57 | $48.99 | $45.75 | $45.77 | 375,467,600 |
June 2011 | $47.93 | $47.98 | $44.01 | $46.68 | 444,344,200 |
May 2011 | $50.25 | $50.27 | $45.56 | $47.88 | 403,834,500 |
April 2011 | $48.32 | $50.20 | $46.99 | $50.18 | 309,722,400 |
March 2011 | $49.29 | $49.34 | $44.95 | $47.99 | 439,334,000 |
February 2011 | $46.04 | $50.33 | $45.98 | $48.79 | 443,594,000 |
January 2011 | $41.83 | $45.86 | $41.78 | $45.78 | 449,380,100 |
December 2010 | $39.93 | $41.81 | $39.93 | $41.49 | 409,237,200 |
November 2010 | $37.62 | $40.80 | $37.57 | $39.47 | 486,318,500 |
October 2010 | $35.14 | $37.67 | $34.85 | $37.49 | 430,427,600 |
September 2010 | $33.85 | $35.21 | $33.67 | $34.84 | 423,362,300 |
August 2010 | $33.95 | $35.27 | $32.73 | $33.33 | 475,629,700 |
July 2010 | $31.90 | $34.64 | $31.32 | $33.41 | 613,489,500 |
June 2010 | $33.80 | $36.11 | $31.87 | $31.95 | 808,522,600 |
May 2010 | $37.87 | $37.94 | $32.51 | $33.85 | 768,609,600 |
April 2010 | $37.41 | $38.93 | $37.17 | $37.69 | 531,285,400 |
March 2010 | $36.35 | $37.75 | $36.19 | $37.25 | 582,728,200 |
February 2010 | $36.34 | $37.14 | $35.12 | $36.15 | 534,843,200 |
January 2010 | $37.97 | $39.00 | $35.37 | $35.60 | 596,474,300 |
December 2009 | $41.99 | $42.15 | $37.37 | $37.67 | 648,945,000 |
