| DATE | OPEN | HIGH | LOW | CLOSE | VOLUME | 
|---|---|---|---|---|---|
| December 31 2012    | $50.65    | $51.61    | $50.45    | $51.55    | 19,810,800    | 
| December 28 2012    | $51.28    | $51.39    | $50.67    | $50.69    | 13,358,700    | 
| December 27 2012    | $51.85    | $51.96    | $51.07    | $51.73    | 14,258,500    | 
| December 26 2012    | $51.94    | $52.22    | $51.56    | $51.86    | 10,737,800    | 
| December 24 2012    | $51.89    | $52.01    | $51.70    | $51.77    | 6,385,200    | 
| December 21 2012    | $52.21    | $52.77    | $51.82    | $51.95    | 33,057,000    | 
| December 20 2012    | $52.64    | $52.97    | $52.40    | $52.94    | 15,789,000    | 
| December 19 2012    | $53.33    | $53.37    | $52.64    | $52.67    | 15,092,500    | 
| December 18 2012    | $52.86    | $53.45    | $52.75    | $53.34    | 15,396,600    | 
| December 17 2012    | $52.63    | $52.97    | $52.47    | $52.93    | 15,672,500    | 
| December 14 2012    | $52.41    | $52.68    | $52.36    | $52.46    | 13,363,600    | 
| December 13 2012    | $53.10    | $53.28    | $52.57    | $52.76    | 12,290,300    | 
| December 12 2012    | $53.06    | $53.82    | $52.95    | $53.28    | 14,729,500    | 
| December 11 2012    | $52.78    | $53.30    | $52.65    | $53.00    | 12,634,600    | 
| December 10 2012    | $52.76    | $52.98    | $52.56    | $52.66    | 11,549,400    | 
| December 07 2012    | $52.51    | $52.79    | $52.28    | $52.77    | 10,603,100    | 
| December 06 2012    | $52.27    | $52.45    | $51.96    | $52.41    | 12,077,000    | 
| December 05 2012    | $51.98    | $52.57    | $51.88    | $52.25    | 12,717,800    | 
| December 04 2012    | $52.04    | $52.39    | $51.93    | $51.93    | 11,980,000    | 
| December 03 2012    | $52.74    | $52.76    | $52.10    | $52.18    | 10,937,300    | 
| November 30 2012    | $52.45    | $52.65    | $52.31    | $52.50    | 15,522,100    | 
| November 29 2012    | $52.63    | $52.82    | $52.19    | $52.48    | 11,579,100    | 
| November 28 2012    | $51.54    | $52.53    | $51.39    | $52.47    | 15,959,900    | 
| November 27 2012    | $52.65    | $52.73    | $51.96    | $52.03    | 11,841,600    | 
| November 26 2012    | $52.60    | $52.79    | $52.43    | $52.78    | 16,423,600    |