| DATE | OPEN | HIGH | LOW | CLOSE | VOLUME |
|---|---|---|---|---|---|
December 2010 | $22.30 | $24.04 | $19.82 | $20.66 | 399,326,028 |
November 2010 | $22.37 | $23.68 | $21.20 | $21.85 | 213,197,810 |
October 2010 | $20.73 | $22.91 | $20.18 | $22.13 | 220,030,010 |
September 2010 | $18.52 | $20.85 | $17.60 | $20.64 | 364,964,850 |
August 2010 | $19.12 | $20.03 | $18.16 | $18.27 | 289,035,580 |
July 2010 | $18.38 | $20.00 | $17.78 | $19.35 | 265,462,100 |
June 2010 | $18.50 | $21.22 | $17.84 | $18.37 | 509,147,399 |
May 2010 | $23.12 | $23.70 | $18.01 | $18.58 | 746,265,656 |
April 2010 | $23.51 | $24.78 | $22.65 | $22.83 | 202,840,690 |
March 2010 | $20.79 | $23.40 | $20.74 | $23.37 | 314,352,740 |
February 2010 | $23.11 | $23.60 | $19.91 | $20.64 | 435,714,438 |
January 2010 | $23.72 | $24.83 | $22.62 | $22.99 | 228,589,980 |
December 2009 | $22.25 | $23.82 | $21.65 | $23.54 | 231,538,450 |
November 2009 | $20.32 | $22.34 | $19.27 | $22.15 | 436,684,369 |
October 2009 | $18.57 | $21.36 | $18.10 | $20.14 | 397,211,570 |
September 2009 | $18.53 | $20.75 | $18.29 | $18.57 | 385,180,319 |
August 2009 | $18.03 | $19.40 | $17.95 | $18.62 | 261,593,820 |
July 2009 | $15.37 | $19.23 | $14.57 | $17.83 | 465,040,229 |
June 2009 | $16.29 | $16.43 | $14.28 | $15.36 | 583,409,309 |
May 2009 | $16.11 | $17.14 | $15.02 | $16.19 | 638,134,468 |
April 2009 | $14.99 | $17.33 | $13.71 | $16.84 | 775,818,628 |
March 2009 | $14.19 | $15.72 | $12.76 | $15.36 | 678,284,770 |
February 2009 | $12.25 | $15.49 | $11.95 | $14.49 | 770,290,527 |
January 2009 | $13.20 | $15.12 | $10.74 | $12.45 | 706,777,616 |
December 2008 | $12.92 | $14.48 | $11.70 | $13.10 | 537,360,880 |
