| DATE | OPEN | HIGH | LOW | CLOSE | VOLUME |
|---|---|---|---|---|---|
December 2012 | $26.31 | $26.67 | $23.45 | $24.36 | 294,047,500 |
November 2012 | $22.57 | $26.40 | $22.33 | $26.04 | 409,812,500 |
October 2012 | $24.37 | $25.28 | $21.75 | $22.53 | 502,565,000 |
September 2012 | $23.73 | $25.50 | $23.34 | $24.31 | 416,015,000 |
August 2012 | $26.19 | $26.82 | $21.73 | $23.74 | 777,975,000 |
July 2012 | $26.13 | $27.30 | $24.29 | $25.98 | 513,097,500 |
June 2012 | $23.88 | $26.83 | $23.70 | $26.09 | 460,115,000 |
May 2012 | $29.87 | $30.11 | $24.22 | $24.56 | 728,847,500 |
April 2012 | $28.16 | $30.43 | $26.62 | $29.87 | 704,017,500 |
March 2012 | $24.58 | $28.94 | $24.58 | $28.17 | 532,250,000 |
February 2012 | $20.95 | $25.05 | $20.51 | $24.62 | 517,707,500 |
January 2012 | $18.65 | $21.11 | $18.43 | $20.79 | 341,762,500 |
December 2011 | $19.00 | $19.59 | $17.23 | $18.37 | 452,085,000 |
November 2011 | $19.32 | $21.73 | $17.92 | $19.08 | 720,030,000 |
October 2011 | $17.84 | $20.68 | $16.15 | $19.94 | 701,002,500 |
September 2011 | $21.10 | $21.75 | $17.64 | $17.65 | 716,315,000 |
August 2011 | $21.49 | $21.51 | $17.34 | $21.10 | 991,877,500 |
July 2011 | $20.16 | $21.68 | $20.03 | $21.11 | 420,280,000 |
June 2011 | $20.19 | $20.39 | $17.74 | $20.10 | 566,670,000 |
May 2011 | $21.67 | $22.06 | $19.15 | $20.23 | 659,142,500 |
April 2011 | $19.95 | $21.84 | $19.65 | $21.48 | 468,672,500 |
March 2011 | $17.67 | $19.99 | $17.31 | $19.89 | 695,982,500 |
February 2011 | $16.96 | $18.43 | $16.33 | $17.82 | 592,577,500 |
January 2011 | $15.80 | $17.40 | $15.80 | $16.83 | 528,310,000 |
December 2010 | $15.80 | $16.73 | $15.43 | $15.69 | 450,940,000 |