| DATE | OPEN | HIGH | LOW | CLOSE | VOLUME |
|---|---|---|---|---|---|
December 2012 | $21.58 | $22.35 | $21.16 | $21.53 | 947,310,900 |
November 2012 | $23.06 | $24.14 | $21.23 | $21.45 | 1,310,516,100 |
October 2012 | $23.83 | $24.18 | $22.19 | $22.82 | 1,105,402,300 |
September 2012 | $24.34 | $25.27 | $23.78 | $23.79 | 893,107,700 |
August 2012 | $23.50 | $24.75 | $23.01 | $24.64 | 671,748,400 |
July 2012 | $24.32 | $24.66 | $22.67 | $23.41 | 846,604,100 |
June 2012 | $22.84 | $24.73 | $22.49 | $24.29 | 973,131,400 |
May 2012 | $25.29 | $25.52 | $22.75 | $23.18 | 1,014,372,600 |
April 2012 | $25.42 | $25.95 | $23.85 | $25.26 | 940,739,700 |
March 2012 | $25.19 | $26.00 | $24.85 | $25.45 | 942,366,500 |
February 2012 | $23.35 | $25.25 | $23.29 | $25.04 | 984,332,300 |
January 2012 | $20.81 | $23.48 | $20.69 | $23.15 | 1,354,858,100 |
December 2011 | $20.04 | $20.53 | $19.72 | $20.35 | 1,007,166,600 |
November 2011 | $20.38 | $21.16 | $19.05 | $20.05 | 1,046,207,400 |
October 2011 | $19.23 | $21.40 | $18.87 | $20.72 | 1,218,142,500 |
September 2011 | $20.59 | $21.40 | $19.14 | $19.36 | 1,279,920,200 |
August 2011 | $21.27 | $21.41 | $18.51 | $20.70 | 1,719,339,500 |
July 2011 | $20.05 | $21.76 | $19.98 | $21.18 | 1,259,328,200 |
June 2011 | $19.32 | $20.10 | $18.28 | $20.10 | 1,297,757,600 |
May 2011 | $19.92 | $20.16 | $18.58 | $19.34 | 1,364,062,800 |
April 2011 | $19.61 | $20.64 | $18.99 | $19.91 | 1,313,844,800 |
March 2011 | $20.43 | $20.57 | $18.96 | $19.50 | 1,310,885,200 |
February 2011 | $21.23 | $21.64 | $20.30 | $20.42 | 1,114,368,500 |
January 2011 | $21.42 | $22.50 | $20.94 | $21.17 | 1,361,258,700 |
December 2010 | $19.52 | $21.69 | $19.52 | $21.31 | 1,033,710,000 |
