
| DATE | OPEN | HIGH | LOW | CLOSE | VOLUME |
|---|---|---|---|---|---|
December 2011 | $34.41 | $35.57 | $33.08 | $34.45 | 171,618,750 |
November 2011 | $31.11 | $34.62 | $30.80 | $34.61 | 231,571,810 |
October 2011 | $29.04 | $32.89 | $27.06 | $32.08 | 257,932,980 |
September 2011 | $30.49 | $33.42 | $28.77 | $29.29 | 354,541,779 |
August 2011 | $28.47 | $31.44 | $26.94 | $30.45 | 412,143,509 |
July 2011 | $27.74 | $29.76 | $27.65 | $28.00 | 221,119,040 |
June 2011 | $26.45 | $28.60 | $23.85 | $27.81 | 281,279,260 |
May 2011 | $25.57 | $26.64 | $24.74 | $26.50 | 184,353,770 |
April 2011 | $23.25 | $25.67 | $23.24 | $25.47 | 162,707,880 |
March 2011 | $22.37 | $24.20 | $22.17 | $23.22 | 210,082,270 |
February 2011 | $21.25 | $23.88 | $21.25 | $22.19 | 175,699,390 |
January 2011 | $20.88 | $22.47 | $20.22 | $21.82 | 242,946,790 |