
| DATE | OPEN | HIGH | LOW | CLOSE | VOLUME | 
|---|---|---|---|---|---|
| December 31 2010    | $21.08    | $21.25    | $21.06    | $21.12    | 5,755,406    | 
| December 30 2010    | $21.16    | $21.22    | $21.08    | $21.10    | 5,359,158    | 
| December 29 2010    | $21.25    | $21.30    | $21.20    | $21.22    | 5,243,144    | 
| December 28 2010    | $21.32    | $21.36    | $21.16    | $21.22    | 5,679,846    | 
| December 27 2010    | $21.18    | $21.30    | $21.13    | $21.23    | 4,548,110    | 
| December 23 2010    | $21.25    | $21.44    | $21.23    | $21.27    | 7,592,865    | 
| December 22 2010    | $21.23    | $21.32    | $21.16    | $21.23    | 9,043,297    | 
| December 21 2010    | $21.49    | $21.50    | $21.19    | $21.20    | 10,432,002    | 
| December 20 2010    | $21.49    | $21.49    | $21.32    | $21.39    | 11,236,132    | 
| December 17 2010    | $21.47    | $21.57    | $21.17    | $21.38    | 19,634,385    | 
| December 16 2010    | $21.44    | $21.61    | $21.33    | $21.59    | 10,479,476    | 
| December 15 2010    | $21.33    | $21.68    | $21.33    | $21.49    | 15,964,184    | 
| December 14 2010    | $21.22    | $21.54    | $21.16    | $21.42    | 17,262,866    | 
| December 13 2010    | $21.00    | $21.23    | $20.92    | $21.16    | 19,718,330    | 
| December 10 2010    | $20.70    | $20.88    | $20.59    | $20.87    | 12,588,576    | 
| December 09 2010    | $20.59    | $20.68    | $20.45    | $20.68    | 9,241,054    | 
| December 08 2010    | $20.49    | $20.60    | $20.41    | $20.53    | 8,952,750    | 
| December 07 2010    | $20.57    | $20.66    | $20.44    | $20.51    | 19,084,394    | 
| December 06 2010    | $20.47    | $20.50    | $20.33    | $20.44    | 11,176,082    | 
| December 03 2010    | $20.46    | $20.48    | $20.31    | $20.47    | 11,352,774    | 
| December 02 2010    | $20.39    | $20.50    | $20.30    | $20.42    | 39,504,255    | 
| December 01 2010    | $20.15    | $20.37    | $20.10    | $20.33    | 34,710,598    | 
| November 30 2010    | $19.98    | $20.12    | $19.90    | $19.99    | 40,543,452    | 
| November 29 2010    | $20.05    | $20.15    | $19.88    | $20.12    | 13,967,220    | 
| November 26 2010    | $20.02    | $20.23    | $20.01    | $20.17    | 7,456,101    |