| DATE | OPEN | HIGH | LOW | CLOSE | VOLUME |
|---|---|---|---|---|---|
December 31 2010 | $20.61 | $20.75 | $20.61 | $20.74 | 10,773,400 |
December 30 2010 | $20.63 | $20.68 | $20.61 | $20.65 | 9,285,800 |
December 29 2010 | $20.62 | $20.70 | $20.60 | $20.64 | 8,747,200 |
December 28 2010 | $20.53 | $20.63 | $20.51 | $20.61 | 9,861,600 |
December 27 2010 | $20.67 | $20.67 | $20.51 | $20.52 | 9,923,800 |
December 23 2010 | $20.66 | $20.77 | $20.64 | $20.68 | 13,063,600 |
December 22 2010 | $20.62 | $20.68 | $20.50 | $20.68 | 15,419,800 |
December 21 2010 | $20.60 | $20.68 | $20.54 | $20.65 | 18,720,200 |
December 20 2010 | $20.64 | $20.73 | $20.55 | $20.59 | 18,271,400 |
December 17 2010 | $20.50 | $20.73 | $20.45 | $20.72 | 29,294,200 |
December 16 2010 | $20.45 | $20.63 | $20.40 | $20.60 | 28,817,200 |
December 15 2010 | $20.15 | $20.48 | $20.10 | $20.41 | 26,126,600 |
December 14 2010 | $20.44 | $20.46 | $20.08 | $20.15 | 27,936,800 |
December 13 2010 | $20.30 | $20.48 | $20.27 | $20.45 | 18,748,400 |
December 10 2010 | $20.45 | $20.46 | $20.27 | $20.38 | 17,909,400 |
December 09 2010 | $20.37 | $20.47 | $20.36 | $20.44 | 19,622,400 |
December 08 2010 | $20.20 | $20.32 | $20.20 | $20.30 | 18,226,600 |
December 07 2010 | $20.30 | $20.36 | $20.22 | $20.22 | 19,714,600 |
December 06 2010 | $20.30 | $20.33 | $20.18 | $20.18 | 22,221,600 |
December 03 2010 | $20.43 | $20.48 | $20.33 | $20.34 | 20,677,800 |
December 02 2010 | $20.38 | $20.48 | $20.34 | $20.46 | 22,773,600 |
December 01 2010 | $20.16 | $20.43 | $20.13 | $20.40 | 20,951,600 |
November 30 2010 | $19.85 | $20.05 | $19.84 | $19.92 | 23,550,600 |
November 29 2010 | $20.04 | $20.07 | $19.82 | $19.99 | 22,397,800 |
November 26 2010 | $20.08 | $20.16 | $20.04 | $20.08 | 9,016,800 |