| Date | Open | High | Low | Close | Volume | Change (%) |
|---|---|---|---|---|---|---|
| Apr 30, 2012 | 38.63 | 38.94 | 38.29 | 38.41 | 794,261 | -0.09(-0.23%) |
| Apr 27, 2012 | 38.51 | 38.90 | 37.91 | 38.50 | 445,033 | +0.29(+0.76%) |
| Apr 26, 2012 | 37.02 | 38.37 | 36.91 | 38.21 | 826,407 | +1.04(+2.80%) |
| Apr 25, 2012 | 36.07 | 37.26 | 36.07 | 37.17 | 872,736 | +1.45(+4.06%) |
| Apr 24, 2012 | 36.50 | 36.71 | 35.48 | 35.72 | 1,071,312 | -0.78(-2.14%) |
| Apr 23, 2012 | 37.32 | 37.64 | 36.33 | 36.50 | 1,496,772 | -1.46(-3.85%) |
| Apr 20, 2012 | 39.11 | 39.99 | 37.47 | 37.96 | 3,560,000 | -2.62(-6.46%) |
| Apr 19, 2012 | 39.80 | 40.87 | 39.62 | 40.58 | 1,023,277 | +0.68(+1.70%) |
| Apr 18, 2012 | 39.45 | 40.22 | 39.35 | 39.90 | 694,153 | +0.49(+1.24%) |
| Apr 17, 2012 | 38.71 | 39.57 | 38.60 | 39.41 | 574,258 | +1.02(+2.66%) |
| Apr 16, 2012 | 38.27 | 38.71 | 37.40 | 38.39 | 516,525 | +0.39(+1.03%) |
| Apr 13, 2012 | 38.54 | 38.71 | 37.87 | 38.00 | 253,885 | -0.82(-2.11%) |
| Apr 12, 2012 | 38.54 | 39.14 | 38.37 | 38.82 | 385,813 | +0.19(+0.49%) |
| Apr 11, 2012 | 38.08 | 38.80 | 38.01 | 38.63 | 564,155 | +0.96(+2.55%) |
| Apr 10, 2012 | 39.35 | 39.78 | 37.55 | 37.67 | 732,376 | -1.66(-4.22%) |
| Apr 09, 2012 | 39.65 | 39.95 | 38.91 | 39.33 | 475,868 | -1.08(-2.67%) |
| Apr 05, 2012 | 40.04 | 40.55 | 39.78 | 40.41 | 742,738 | -0.68(-1.65%) |
| Apr 04, 2012 | 41.27 | 41.95 | 40.62 | 41.09 | 507,452 | -0.97(-2.31%) |
| Apr 03, 2012 | 42.00 | 42.32 | 41.50 | 42.06 | 266,508 | -0.15(-0.36%) |
| Apr 02, 2012 | 41.71 | 42.51 | 41.33 | 42.21 | 325,761 | +0.38(+0.91%) |
| Mar 30, 2012 | 42.46 | 42.75 | 41.75 | 41.83 | 369,028 | -0.38(-0.90%) |
| Mar 29, 2012 | 42.65 | 42.91 | 41.66 | 42.21 | 402,227 | -0.81(-1.88%) |
| Mar 28, 2012 | 43.32 | 43.84 | 41.79 | 43.02 | 476,398 | -0.11(-0.26%) |
| Mar 27, 2012 | 44.50 | 44.50 | 43.09 | 43.13 | 374,609 | -1.29(-2.90%) |
| Mar 26, 2012 | 42.80 | 44.47 | 42.33 | 44.42 | 732,116 | +2.14(+5.06%) |
| Mar 23, 2012 | 42.85 | 42.85 | 41.74 | 42.28 | 315,893 | -0.20(-0.47%) |
| Mar 22, 2012 | 40.71 | 42.59 | 40.36 | 42.48 | 521,861 | +1.27(+3.08%) |
| Mar 21, 2012 | 42.21 | 42.24 | 40.91 | 41.21 | 570,209 | -0.78(-1.86%) |
| Mar 20, 2012 | 42.29 | 42.46 | 41.72 | 41.99 | 363,467 | -0.51(-1.20%) |
| Mar 19, 2012 | 42.48 | 43.00 | 42.03 | 42.50 | 401,530 | +0.02(+0.05%) |
| Mar 16, 2012 | 42.11 | 42.81 | 41.70 | 42.48 | 676,526 | +0.60(+1.43%) |
| Mar 15, 2012 | 42.35 | 42.61 | 41.59 | 41.88 | 539,539 | -0.59(-1.39%) |
| Mar 14, 2012 | 42.53 | 42.70 | 42.06 | 42.47 | 386,857 | -0.32(-0.75%) |
| Mar 13, 2012 | 42.78 | 42.81 | 41.80 | 42.79 | 334,199 | +0.35(+0.82%) |
| Mar 12, 2012 | 42.68 | 42.78 | 42.00 | 42.44 | 412,361 | -0.34(-0.79%) |
| Mar 09, 2012 | 42.19 | 42.94 | 41.87 | 42.78 | 575,534 | +0.62(+1.47%) |
| Mar 08, 2012 | 41.33 | 42.22 | 40.76 | 42.16 | 493,904 | +1.00(+2.43%) |
| Mar 07, 2012 | 40.32 | 42.02 | 40.20 | 41.16 | 834,946 | +1.05(+2.62%) |
| Mar 06, 2012 | 40.32 | 40.66 | 39.57 | 40.11 | 546,877 | -0.58(-1.43%) |
| Mar 05, 2012 | 39.36 | 40.73 | 39.18 | 40.69 | 480,590 | +1.27(+3.22%) |
| Mar 02, 2012 | 40.35 | 40.78 | 39.32 | 39.42 | 525,652 | -0.76(-1.89%) |
| Mar 01, 2012 | 40.72 | 40.99 | 40.02 | 40.18 | 513,809 | -0.21(-0.52%) |
| Feb 29, 2012 | 41.13 | 41.61 | 40.34 | 40.39 | 955,999 | -0.75(-1.82%) |
| Feb 28, 2012 | 41.17 | 41.68 | 40.88 | 41.14 | 432,041 | -0.30(-0.72%) |
| Feb 27, 2012 | 41.25 | 41.77 | 40.61 | 41.44 | 447,923 | -0.16(-0.38%) |
| Feb 24, 2012 | 41.88 | 42.02 | 41.34 | 41.60 | 450,977 | -0.15(-0.36%) |
| Feb 23, 2012 | 40.00 | 41.87 | 39.90 | 41.75 | 722,149 | +1.18(+2.91%) |
| Feb 22, 2012 | 40.83 | 41.00 | 40.14 | 40.57 | 499,091 | -0.72(-1.74%) |
| Feb 21, 2012 | 41.99 | 42.58 | 41.13 | 41.29 | 652,326 | -0.45(-1.08%) |
| Feb 17, 2012 | 42.88 | 43.07 | 41.58 | 41.74 | 472,098 | -0.87(-2.04%) |
| Feb 16, 2012 | 42.43 | 43.34 | 41.83 | 42.61 | 742,842 | +0.26(+0.61%) |
| Feb 15, 2012 | 43.18 | 43.74 | 42.09 | 42.35 | 529,867 | -0.72(-1.67%) |
| Feb 14, 2012 | 43.68 | 43.69 | 42.61 | 43.07 | 524,001 | -0.77(-1.76%) |
| Feb 13, 2012 | 42.86 | 44.01 | 42.79 | 43.84 | 726,567 | +1.68(+3.98%) |
| Feb 10, 2012 | 42.13 | 42.38 | 40.52 | 42.16 | 665,064 | -0.23(-0.54%) |
| Feb 09, 2012 | 42.80 | 43.22 | 42.30 | 42.39 | 604,417 | -0.38(-0.89%) |
| Feb 08, 2012 | 43.55 | 43.91 | 42.28 | 42.77 | 661,436 | -0.45(-1.04%) |
| Feb 07, 2012 | 44.49 | 44.66 | 42.84 | 43.22 | 721,818 | -1.69(-3.76%) |
| Feb 06, 2012 | 43.13 | 45.00 | 43.13 | 44.91 | 680,557 | +1.40(+3.22%) |
| Feb 03, 2012 | 43.09 | 43.63 | 42.97 | 43.51 | 771,812 | +0.56(+1.30%) |
| Feb 02, 2012 | 43.44 | 43.84 | 42.70 | 42.95 | 796,683 | -0.26(-0.60%) |