| Date | Open | High | Low | Close | Volume | Change (%) |
|---|---|---|---|---|---|---|
| Feb 29, 2012 | 38.27 | 39.80 | 38.15 | 38.46 | 2,515,907 | -0.36(-0.93%) |
| Feb 28, 2012 | 35.28 | 38.98 | 35.28 | 38.82 | 5,814,900 | +5.28(+15.74%) |
| Feb 27, 2012 | 33.01 | 33.69 | 32.92 | 33.54 | 1,261,442 | +0.34(+1.02%) |
| Feb 24, 2012 | 33.38 | 33.52 | 32.94 | 33.20 | 626,118 | -0.28(-0.84%) |
| Feb 23, 2012 | 33.33 | 33.75 | 33.21 | 33.48 | 436,477 | +0.27(+0.81%) |
| Feb 22, 2012 | 33.52 | 33.59 | 32.88 | 33.21 | 559,027 | -0.31(-0.92%) |
| Feb 21, 2012 | 33.01 | 33.84 | 33.01 | 33.52 | 505,501 | +0.55(+1.67%) |
| Feb 17, 2012 | 33.16 | 33.49 | 32.90 | 32.97 | 773,724 | -0.10(-0.30%) |
| Feb 16, 2012 | 32.55 | 33.17 | 32.55 | 33.07 | 609,697 | +0.44(+1.35%) |
| Feb 15, 2012 | 32.85 | 32.99 | 32.46 | 32.63 | 823,815 | -0.10(-0.31%) |
| Feb 14, 2012 | 32.60 | 32.74 | 32.29 | 32.73 | 422,609 | +0.22(+0.68%) |
| Feb 13, 2012 | 32.60 | 32.71 | 32.23 | 32.51 | 671,668 | +0.05(+0.15%) |
| Feb 10, 2012 | 32.89 | 33.04 | 32.34 | 32.46 | 562,282 | -0.74(-2.23%) |
| Feb 09, 2012 | 33.31 | 33.35 | 33.04 | 33.20 | 576,742 | -0.03(-0.09%) |
| Feb 08, 2012 | 33.33 | 33.60 | 32.79 | 33.23 | 290,694 | -0.02(-0.06%) |
| Feb 07, 2012 | 33.28 | 33.45 | 33.10 | 33.25 | 360,968 | -0.03(-0.09%) |
| Feb 06, 2012 | 33.67 | 33.76 | 33.26 | 33.28 | 288,909 | -0.59(-1.74%) |
| Feb 03, 2012 | 33.29 | 33.91 | 33.23 | 33.87 | 544,492 | +0.94(+2.85%) |
| Feb 02, 2012 | 32.87 | 33.13 | 32.68 | 32.93 | 336,734 | +0.05(+0.15%) |
| Feb 01, 2012 | 32.70 | 32.93 | 32.60 | 32.88 | 499,989 | +0.23(+0.70%) |
| Jan 31, 2012 | 32.80 | 32.84 | 32.45 | 32.65 | 383,040 | +0.01(+0.03%) |
| Jan 30, 2012 | 32.15 | 32.85 | 31.81 | 32.64 | 521,072 | +0.33(+1.02%) |
| Jan 27, 2012 | 32.04 | 32.41 | 32.04 | 32.31 | 353,360 | +0.11(+0.34%) |
| Jan 26, 2012 | 32.56 | 32.67 | 32.03 | 32.20 | 422,303 | -0.24(-0.74%) |
| Jan 25, 2012 | 31.75 | 32.50 | 31.72 | 32.44 | 585,448 | +0.55(+1.72%) |
| Jan 24, 2012 | 31.11 | 31.99 | 30.90 | 31.89 | 1,205,678 | +0.64(+2.05%) |
| Jan 23, 2012 | 31.96 | 32.00 | 31.21 | 31.25 | 973,777 | -0.75(-2.34%) |
| Jan 20, 2012 | 32.38 | 32.68 | 31.87 | 32.00 | 657,401 | -0.40(-1.23%) |
| Jan 19, 2012 | 32.96 | 33.00 | 32.32 | 32.40 | 587,894 | -0.37(-1.13%) |
| Jan 18, 2012 | 32.30 | 33.27 | 32.02 | 32.77 | 1,051,638 | +0.51(+1.58%) |
| Jan 17, 2012 | 34.06 | 34.22 | 32.06 | 32.26 | 1,329,317 | -1.50(-4.44%) |
| Jan 13, 2012 | 33.98 | 34.16 | 33.51 | 33.76 | 623,722 | -0.32(-0.94%) |
| Jan 12, 2012 | 34.53 | 34.64 | 33.86 | 34.08 | 704,491 | -0.29(-0.84%) |
| Jan 11, 2012 | 33.97 | 34.45 | 33.97 | 34.37 | 399,594 | +0.35(+1.03%) |
| Jan 10, 2012 | 33.84 | 34.35 | 33.57 | 34.02 | 478,272 | +0.45(+1.34%) |
| Jan 09, 2012 | 33.50 | 33.76 | 33.33 | 33.57 | 566,141 | +0.27(+0.81%) |
| Jan 06, 2012 | 33.42 | 33.62 | 33.13 | 33.30 | 724,369 | -0.07(-0.21%) |
| Jan 05, 2012 | 33.77 | 33.84 | 33.03 | 33.37 | 623,457 | -0.45(-1.33%) |
| Jan 04, 2012 | 33.10 | 33.90 | 33.10 | 33.82 | 450,422 | -0.13(-0.38%) |
| Dec 30, 2011 | 34.38 | 34.38 | 33.94 | 33.95 | 317,980 | -0.43(-1.25%) |
| Dec 29, 2011 | 34.30 | 34.53 | 34.17 | 34.38 | 247,787 | +0.21(+0.61%) |
| Dec 28, 2011 | 34.25 | 34.38 | 34.05 | 34.17 | 369,611 | +0.08(+0.23%) |
| Dec 27, 2011 | 33.88 | 34.23 | 33.67 | 34.09 | 347,862 | +0.22(+0.65%) |
| Dec 23, 2011 | 33.51 | 33.93 | 33.51 | 33.87 | 295,016 | +0.27(+0.80%) |
| Dec 21, 2011 | 33.50 | 33.72 | 33.05 | 33.60 | 421,980 | +0.12(+0.36%) |
| Dec 20, 2011 | 33.01 | 33.65 | 32.98 | 33.48 | 487,685 | +0.91(+2.79%) |
| Dec 19, 2011 | 33.64 | 33.72 | 32.50 | 32.57 | 553,860 | -0.73(-2.19%) |
| Dec 16, 2011 | 33.59 | 33.72 | 33.13 | 33.30 | 817,336 | -0.12(-0.36%) |
| Dec 15, 2011 | 33.37 | 33.63 | 32.88 | 33.42 | 731,093 | +0.31(+0.94%) |
| Dec 14, 2011 | 34.96 | 34.96 | 33.06 | 33.11 | 1,274,171 | -1.79(-5.13%) |
| Dec 13, 2011 | 34.99 | 35.30 | 34.81 | 34.90 | 1,508,184 | -0.01(-0.03%) |
| Dec 12, 2011 | 34.42 | 34.98 | 34.26 | 34.91 | 702,168 | +0.21(+0.61%) |
| Dec 09, 2011 | 34.52 | 35.00 | 34.21 | 34.70 | 955,081 | +0.45(+1.31%) |
| Dec 08, 2011 | 33.48 | 34.75 | 33.48 | 34.25 | 1,184,342 | +0.79(+2.36%) |
| Dec 07, 2011 | 33.06 | 33.60 | 32.92 | 33.46 | 524,223 | +0.23(+0.69%) |
| Dec 06, 2011 | 33.22 | 33.48 | 33.10 | 33.23 | 648,496 | -0.09(-0.27%) |
| Dec 05, 2011 | 33.66 | 33.75 | 33.11 | 33.32 | 826,054 | -0.24(-0.72%) |
| Dec 02, 2011 | 33.88 | 34.05 | 33.44 | 33.56 | 516,890 | +0.12(+0.36%) |