| DATE | OPEN | HIGH | LOW | CLOSE | VOLUME |
|---|---|---|---|---|---|
December 2010 | $28.67 | $29.41 | $27.06 | $27.96 | 159,579,700 |
November 2010 | $27.99 | $28.94 | $26.63 | $28.19 | 180,833,400 |
October 2010 | $27.07 | $29.29 | $26.20 | $27.83 | 171,901,700 |
September 2010 | $24.62 | $27.74 | $24.49 | $27.10 | 160,229,900 |
August 2010 | $23.75 | $25.98 | $23.70 | $24.39 | 175,165,600 |
July 2010 | $21.77 | $24.39 | $20.86 | $23.42 | 184,052,600 |
June 2010 | $22.35 | $24.45 | $21.77 | $21.84 | 235,428,300 |
May 2010 | $23.36 | $23.54 | $21.42 | $22.26 | 200,376,300 |
April 2010 | $25.12 | $26.04 | $22.68 | $23.21 | 290,275,300 |
March 2010 | $26.01 | $26.90 | $24.43 | $25.00 | 262,189,500 |
February 2010 | $25.27 | $26.24 | $24.02 | $25.91 | 218,638,400 |
January 2010 | $24.01 | $27.60 | $23.69 | $25.25 | 278,076,300 |
December 2009 | $22.19 | $25.44 | $20.89 | $23.32 | 333,531,300 |
November 2009 | $19.91 | $22.75 | $19.62 | $21.94 | 189,972,900 |
October 2009 | $19.04 | $20.50 | $17.98 | $19.85 | 308,267,500 |
September 2009 | $21.38 | $22.86 | $18.76 | $19.16 | 264,571,800 |
August 2009 | $21.68 | $22.95 | $19.45 | $21.42 | 193,463,900 |
July 2009 | $19.20 | $22.73 | $18.13 | $21.47 | 234,371,800 |
June 2009 | $20.58 | $21.75 | $17.77 | $19.11 | 278,463,500 |
May 2009 | $18.03 | $22.72 | $17.40 | $20.35 | 205,106,600 |
April 2009 | $15.77 | $19.97 | $15.19 | $18.00 | 289,077,700 |
March 2009 | $14.66 | $17.49 | $12.36 | $16.01 | 343,674,000 |
February 2009 | $21.39 | $23.11 | $14.84 | $15.01 | 289,614,500 |
January 2009 | $20.40 | $23.11 | $18.16 | $21.64 | 197,849,000 |
December 2008 | $16.56 | $20.86 | $14.55 | $20.32 | 182,675,600 |