| Date | Open | High | Low | Close | Volume | Change (%) |
|---|---|---|---|---|---|---|
| Feb 29, 2012 | 57.09 | 57.57 | 56.38 | 56.62 | 4,244,846 | -0.62(-1.08%) |
| Feb 28, 2012 | 56.43 | 57.33 | 56.13 | 57.24 | 2,828,248 | +0.81(+1.44%) |
| Feb 27, 2012 | 56.02 | 56.68 | 55.29 | 56.43 | 1,935,013 | -0.23(-0.41%) |
| Feb 24, 2012 | 55.96 | 56.68 | 55.80 | 56.66 | 1,413,452 | +0.54(+0.96%) |
| Feb 23, 2012 | 55.82 | 56.60 | 53.00 | 56.12 | 3,944,265 | +0.28(+0.50%) |
| Feb 22, 2012 | 55.77 | 55.99 | 55.36 | 55.84 | 1,653,619 | -0.08(-0.14%) |
| Feb 21, 2012 | 56.66 | 56.77 | 55.83 | 55.92 | 1,591,582 | -0.46(-0.82%) |
| Feb 17, 2012 | 57.08 | 57.08 | 56.24 | 56.38 | 1,884,196 | -0.24(-0.42%) |
| Feb 16, 2012 | 55.77 | 56.74 | 55.54 | 56.62 | 2,365,892 | +0.76(+1.36%) |
| Feb 15, 2012 | 56.00 | 56.27 | 55.67 | 55.86 | 2,033,972 | +0.01(+0.02%) |
| Feb 14, 2012 | 55.31 | 55.87 | 55.31 | 55.85 | 1,169,818 | +0.15(+0.27%) |
| Feb 13, 2012 | 55.97 | 56.22 | 55.63 | 55.70 | 1,393,410 | +0.18(+0.32%) |
| Feb 10, 2012 | 55.48 | 55.64 | 54.83 | 55.52 | 1,575,455 | -0.55(-0.98%) |
| Feb 09, 2012 | 56.20 | 56.44 | 55.46 | 56.07 | 1,622,849 | +0.07(+0.13%) |
| Feb 08, 2012 | 55.41 | 56.12 | 55.32 | 56.00 | 2,031,040 | +0.64(+1.16%) |
| Feb 07, 2012 | 55.47 | 56.10 | 54.86 | 55.36 | 2,871,144 | -0.38(-0.68%) |
| Feb 06, 2012 | 55.90 | 56.37 | 55.52 | 55.74 | 1,812,163 | -0.55(-0.98%) |
| Feb 03, 2012 | 55.40 | 56.39 | 55.25 | 56.29 | 3,449,287 | +1.49(+2.72%) |
| Feb 02, 2012 | 54.93 | 55.40 | 54.45 | 54.80 | 2,810,914 | +0.09(+0.16%) |
| Feb 01, 2012 | 54.11 | 55.32 | 53.75 | 54.71 | 4,329,352 | +1.81(+3.42%) |
| Jan 31, 2012 | 52.59 | 53.39 | 52.39 | 52.90 | 4,252,734 | +0.45(+0.86%) |
| Jan 30, 2012 | 51.88 | 52.92 | 51.51 | 52.45 | 3,313,329 | -0.01(-0.02%) |
| Jan 27, 2012 | 52.10 | 52.90 | 51.94 | 52.46 | 3,215,956 | +0.15(+0.29%) |
| Jan 26, 2012 | 53.60 | 53.60 | 52.09 | 52.31 | 3,258,117 | -1.23(-2.30%) |
| Jan 25, 2012 | 52.89 | 54.09 | 52.85 | 53.54 | 3,293,324 | +1.06(+2.02%) |
| Jan 24, 2012 | 51.59 | 53.37 | 51.41 | 52.48 | 3,434,958 | +0.65(+1.25%) |
| Jan 23, 2012 | 51.05 | 51.91 | 51.05 | 51.83 | 2,786,603 | +0.69(+1.35%) |
| Jan 20, 2012 | 51.51 | 51.69 | 50.85 | 51.14 | 2,603,284 | -0.70(-1.35%) |
| Jan 19, 2012 | 51.22 | 52.00 | 51.00 | 51.84 | 3,029,671 | +0.65(+1.27%) |
| Jan 18, 2012 | 49.73 | 51.33 | 49.60 | 51.19 | 4,364,080 | +1.33(+2.67%) |
| Jan 17, 2012 | 49.71 | 50.20 | 49.35 | 49.86 | 5,224,329 | +0.51(+1.03%) |
| Jan 13, 2012 | 49.46 | 49.91 | 49.09 | 49.35 | 2,684,823 | -0.43(-0.86%) |
| Jan 12, 2012 | 49.90 | 49.99 | 49.33 | 49.78 | 3,376,512 | -0.19(-0.38%) |
| Jan 11, 2012 | 48.88 | 49.99 | 48.85 | 49.97 | 2,900,192 | +0.90(+1.83%) |
| Jan 10, 2012 | 48.04 | 49.39 | 47.95 | 49.07 | 4,483,205 | +1.40(+2.94%) |
| Jan 09, 2012 | 47.74 | 47.90 | 47.10 | 47.67 | 2,629,893 | +0.05(+0.10%) |
| Jan 06, 2012 | 46.56 | 47.74 | 46.31 | 47.62 | 3,991,178 | +1.28(+2.76%) |
| Jan 05, 2012 | 45.76 | 46.64 | 45.67 | 46.34 | 3,392,068 | +0.39(+0.85%) |
| Jan 04, 2012 | 46.90 | 47.34 | 45.95 | 45.95 | 3,054,344 | +0.98(+2.18%) |
| Dec 30, 2011 | 44.95 | 45.32 | 44.95 | 44.97 | 1,440,125 | +0.02(+0.04%) |
| Dec 29, 2011 | 44.37 | 45.05 | 44.25 | 44.95 | 1,420,119 | +0.72(+1.63%) |
| Dec 28, 2011 | 45.46 | 45.53 | 44.20 | 44.23 | 1,586,934 | -1.27(-2.79%) |
| Dec 27, 2011 | 45.41 | 45.84 | 45.31 | 45.50 | 1,107,428 | -0.19(-0.42%) |
| Dec 23, 2011 | 45.80 | 45.86 | 45.46 | 45.69 | 1,937,111 | +1.03(+2.31%) |
| Dec 21, 2011 | 45.03 | 45.07 | 44.23 | 44.66 | 2,899,024 | -0.27(-0.60%) |
| Dec 20, 2011 | 44.26 | 45.11 | 44.22 | 44.93 | 2,390,642 | +1.39(+3.19%) |
| Dec 19, 2011 | 44.06 | 44.52 | 43.40 | 43.54 | 2,433,382 | -0.30(-0.68%) |
| Dec 16, 2011 | 44.49 | 44.50 | 43.60 | 43.84 | 4,344,682 | -0.31(-0.70%) |
| Dec 15, 2011 | 43.75 | 44.28 | 43.06 | 44.15 | 4,004,553 | +0.40(+0.91%) |
| Dec 14, 2011 | 44.61 | 44.74 | 43.64 | 43.75 | 3,915,629 | -0.94(-2.10%) |
| Dec 13, 2011 | 45.19 | 45.60 | 44.44 | 44.69 | 3,237,022 | -0.44(-0.97%) |
| Dec 12, 2011 | 45.39 | 45.48 | 44.94 | 45.13 | 3,052,150 | -0.51(-1.12%) |
| Dec 09, 2011 | 45.34 | 45.80 | 44.65 | 45.64 | 4,900,099 | +0.35(+0.77%) |
| Dec 08, 2011 | 46.45 | 46.71 | 45.16 | 45.29 | 4,084,233 | -1.69(-3.60%) |
| Dec 07, 2011 | 46.88 | 47.28 | 46.16 | 46.98 | 2,925,345 | -0.20(-0.42%) |
| Dec 06, 2011 | 46.68 | 47.38 | 46.64 | 47.18 | 2,457,456 | +0.40(+0.86%) |
| Dec 05, 2011 | 47.10 | 47.41 | 46.46 | 46.78 | 2,551,954 | +0.24(+0.52%) |
| Dec 02, 2011 | 47.34 | 47.63 | 46.39 | 46.54 | 1,699,750 | -0.50(-1.06%) |