| DATE | OPEN | HIGH | LOW | CLOSE | VOLUME | 
|---|---|---|---|---|---|
| December 31 2010    | $35.46    | $35.53    | $35.23    | $35.31    | 16,923,250    | 
| December 30 2010    | $35.68    | $35.68    | $35.46    | $35.53    | 14,418,630    | 
| December 29 2010    | $35.83    | $35.83    | $35.46    | $35.60    | 16,459,820    | 
| December 28 2010    | $35.75    | $35.83    | $35.46    | $35.68    | 18,644,350    | 
| December 27 2010    | $34.78    | $35.75    | $34.71    | $35.60    | 29,016,760    | 
| December 23 2010    | $35.23    | $35.23    | $34.93    | $34.93    | 20,536,470    | 
| December 22 2010    | $35.46    | $35.53    | $34.93    | $35.31    | 51,355,450    | 
| December 21 2010    | $35.38    | $35.60    | $35.16    | $35.38    | 39,886,050    | 
| December 20 2010    | $35.31    | $35.38    | $34.86    | $35.16    | 41,915,750    | 
| December 17 2010    | $34.34    | $35.08    | $34.11    | $35.08    | 69,555,640    | 
| December 16 2010    | $34.41    | $34.71    | $33.89    | $34.26    | 68,094,680    | 
| December 15 2010    | $34.86    | $34.93    | $33.89    | $34.26    | 72,978,680    | 
| December 14 2010    | $35.90    | $35.90    | $34.78    | $35.01    | 60,311,180    | 
| December 13 2010    | $35.83    | $36.20    | $35.53    | $35.90    | 69,850,800    | 
| December 10 2010    | $35.08    | $35.60    | $34.78    | $35.60    | 76,407,750    | 
| December 09 2010    | $34.93    | $35.16    | $34.63    | $35.01    | 73,204,230    | 
| December 08 2010    | $34.41    | $34.63    | $33.96    | $34.63    | 91,574,090    | 
| December 07 2010    | $33.96    | $34.71    | $33.89    | $34.48    | 326,782,940    | 
| December 06 2010    | $33.22    | $33.59    | $33.07    | $33.22    | 47,203,040    | 
| December 03 2010    | $32.69    | $33.29    | $32.47    | $33.22    | 36,080,610    | 
| December 02 2010    | $32.25    | $33.22    | $32.25    | $32.99    | 51,966,270    | 
| December 01 2010    | $31.95    | $32.17    | $31.80    | $32.10    | 49,494,990    | 
| November 30 2010    | $30.83    | $31.65    | $30.68    | $31.35    | 61,260,330    | 
| November 29 2010    | $30.75    | $31.13    | $30.60    | $30.98    | 33,721,160    | 
| November 26 2010    | $30.90    | $31.05    | $30.60    | $30.68    | 15,672,580    |