| DATE | OPEN | HIGH | LOW | CLOSE | VOLUME |
|---|---|---|---|---|---|
December 2011 | $21.19 | $23.48 | $20.62 | $22.83 | 818,108,000 |
November 2011 | $22.30 | $24.16 | $19.42 | $21.27 | 836,433,900 |
October 2011 | $20.44 | $25.78 | $19.12 | $23.87 | 1,065,099,100 |
September 2011 | $25.61 | $25.74 | $19.42 | $20.50 | 1,031,994,300 |
August 2011 | $28.02 | $28.16 | $21.99 | $25.57 | 1,190,346,900 |
July 2011 | $27.78 | $28.96 | $26.50 | $27.53 | 666,695,700 |
June 2011 | $29.00 | $29.08 | $26.55 | $27.70 | 807,200,100 |
May 2011 | $31.08 | $31.17 | $28.20 | $29.25 | 586,460,300 |
April 2011 | $31.32 | $32.34 | $29.45 | $30.87 | 577,996,200 |
March 2011 | $31.27 | $31.69 | $29.20 | $31.02 | 684,643,600 |
February 2011 | $30.41 | $32.54 | $29.81 | $31.42 | 597,586,300 |
January 2011 | $28.90 | $30.91 | $28.70 | $30.24 | 827,482,200 |
December 2010 | $25.51 | $28.98 | $25.30 | $28.51 | 665,999,200 |
November 2010 | $25.28 | $27.78 | $24.75 | $25.14 | 760,406,300 |
October 2010 | $25.74 | $27.37 | $24.34 | $25.29 | 949,249,000 |
September 2010 | $24.66 | $27.86 | $24.61 | $25.55 | 717,143,800 |
August 2010 | $27.51 | $27.99 | $23.86 | $24.41 | 723,429,400 |
July 2010 | $24.53 | $27.68 | $23.60 | $27.04 | 832,405,700 |
June 2010 | $26.36 | $26.79 | $24.47 | $24.54 | 975,653,600 |
May 2010 | $28.80 | $29.31 | $24.82 | $26.53 | 1,137,332,300 |
April 2010 | $30.18 | $32.31 | $28.31 | $28.54 | 947,688,500 |
March 2010 | $28.14 | $30.83 | $27.68 | $29.96 | 755,522,200 |
February 2010 | $26.18 | $28.33 | $24.79 | $28.10 | 876,257,200 |
January 2010 | $27.98 | $30.26 | $25.49 | $26.07 | 1,029,066,400 |
December 2009 | $28.50 | $28.82 | $26.78 | $27.87 | 755,880,700 |
