| DATE | OPEN | HIGH | LOW | CLOSE | VOLUME |
|---|---|---|---|---|---|
December 2012 | $21.62 | $22.38 | $21.20 | $21.56 | 947,310,900 |
November 2012 | $23.09 | $24.18 | $21.26 | $21.49 | 1,310,516,100 |
October 2012 | $23.87 | $24.22 | $22.23 | $22.85 | 1,105,402,300 |
September 2012 | $24.38 | $25.31 | $23.82 | $23.83 | 893,107,700 |
August 2012 | $23.54 | $24.79 | $23.05 | $24.68 | 671,748,400 |
July 2012 | $24.36 | $24.70 | $22.70 | $23.44 | 846,604,100 |
June 2012 | $22.88 | $24.77 | $22.53 | $24.33 | 973,131,400 |
May 2012 | $25.33 | $25.56 | $22.78 | $23.22 | 1,014,372,600 |
April 2012 | $25.46 | $25.99 | $23.89 | $25.31 | 940,739,700 |
March 2012 | $25.24 | $26.04 | $24.89 | $25.50 | 942,366,500 |
February 2012 | $23.39 | $25.29 | $23.33 | $25.08 | 984,332,300 |
January 2012 | $20.85 | $23.52 | $20.72 | $23.19 | 1,354,858,100 |
December 2011 | $20.07 | $20.56 | $19.75 | $20.38 | 1,007,166,600 |
November 2011 | $20.41 | $21.20 | $19.08 | $20.08 | 1,046,207,400 |
October 2011 | $19.26 | $21.43 | $18.91 | $20.75 | 1,218,142,500 |
September 2011 | $20.62 | $21.43 | $19.17 | $19.40 | 1,279,920,200 |
August 2011 | $21.30 | $21.44 | $18.54 | $20.73 | 1,719,339,500 |
July 2011 | $20.08 | $21.80 | $20.01 | $21.22 | 1,259,328,200 |
June 2011 | $19.35 | $20.13 | $18.31 | $20.13 | 1,297,757,600 |
May 2011 | $19.96 | $20.20 | $18.61 | $19.37 | 1,364,062,800 |
April 2011 | $19.64 | $20.67 | $19.02 | $19.94 | 1,313,844,800 |
March 2011 | $20.46 | $20.60 | $18.99 | $19.53 | 1,310,885,200 |
February 2011 | $21.26 | $21.68 | $20.33 | $20.45 | 1,114,368,500 |
January 2011 | $21.45 | $22.53 | $20.97 | $21.21 | 1,361,258,700 |
December 2010 | $19.56 | $21.72 | $19.55 | $21.35 | 1,033,710,000 |
