| DATE | OPEN | HIGH | LOW | CLOSE | VOLUME |
|---|---|---|---|---|---|
December 2011 | $20.23 | $22.52 | $18.23 | $19.66 | 1,083,220,500 |
November 2011 | $21.60 | $23.57 | $17.41 | $20.53 | 1,136,346,100 |
October 2011 | $18.79 | $25.69 | $15.98 | $23.59 | 1,441,669,000 |
September 2011 | $23.10 | $23.19 | $17.32 | $19.13 | 974,459,500 |
August 2011 | $29.38 | $29.41 | $18.97 | $23.19 | 1,452,518,000 |
July 2011 | $31.01 | $32.15 | $27.56 | $28.63 | 699,641,800 |
June 2011 | $30.60 | $31.36 | $27.45 | $31.09 | 987,412,900 |
May 2011 | $34.34 | $34.34 | $29.42 | $30.72 | 786,764,300 |
April 2011 | $33.29 | $35.01 | $32.47 | $34.26 | 804,428,070 |
March 2011 | $35.08 | $35.08 | $32.39 | $32.99 | 995,499,180 |
February 2011 | $36.28 | $37.02 | $34.11 | $34.93 | 824,192,750 |
January 2011 | $35.68 | $38.44 | $35.23 | $35.98 | 1,270,131,760 |
December 2010 | $31.95 | $36.20 | $31.80 | $35.31 | 1,342,661,430 |
November 2010 | $31.20 | $33.74 | $30.60 | $31.35 | 907,836,580 |
October 2010 | $29.71 | $32.10 | $29.19 | $31.13 | 1,200,038,030 |
September 2010 | $27.99 | $30.01 | $27.92 | $29.19 | 826,898,500 |
August 2010 | $31.28 | $31.35 | $27.10 | $27.69 | 837,883,990 |
July 2010 | $28.59 | $32.10 | $27.02 | $30.60 | 1,046,498,460 |
June 2010 | $29.11 | $30.38 | $27.02 | $28.07 | 1,404,992,480 |
May 2010 | $33.29 | $33.44 | $26.35 | $29.56 | 1,900,123,720 |
April 2010 | $30.68 | $37.84 | $30.01 | $32.62 | 1,893,687,870 |
March 2010 | $25.53 | $32.92 | $24.93 | $30.23 | 1,417,632,660 |
February 2010 | $25.08 | $25.98 | $23.21 | $25.38 | 591,711,130 |
January 2010 | $25.08 | $27.62 | $23.44 | $24.78 | 1,082,616,970 |
December 2009 | $30.98 | $31.42 | $23.36 | $24.71 | 1,502,122,820 |
