| Date | Open | High | Low | Close | Volume | Change (%) |
|---|---|---|---|---|---|---|
| Feb 28, 2011 | 21.75 | 21.84 | 21.37 | 21.47 | 66,297,403 | -0.39(-1.78%) |
| Feb 25, 2011 | 21.52 | 22.00 | 21.46 | 21.86 | 53,472,988 | +0.58(+2.70%) |
| Feb 24, 2011 | 21.10 | 21.41 | 21.03 | 21.29 | 54,494,778 | +0.14(+0.64%) |
| Feb 23, 2011 | 21.70 | 21.72 | 21.01 | 21.15 | 83,529,778 | -0.66(-3.03%) |
| Feb 22, 2011 | 21.95 | 22.19 | 21.73 | 21.81 | 64,431,650 | -0.33(-1.49%) |
| Feb 18, 2011 | 22.09 | 22.21 | 22.01 | 22.14 | 55,066,173 | +0.17(+0.77%) |
| Feb 17, 2011 | 21.68 | 22.06 | 21.67 | 21.97 | 50,185,445 | +0.22(+1.01%) |
| Feb 16, 2011 | 21.57 | 21.88 | 21.43 | 21.75 | 55,212,946 | +0.30(+1.40%) |
| Feb 15, 2011 | 21.48 | 21.55 | 21.28 | 21.45 | 50,635,439 | -0.12(-0.56%) |
| Feb 14, 2011 | 21.63 | 21.80 | 21.50 | 21.57 | 45,131,765 | -0.19(-0.87%) |
| Feb 11, 2011 | 21.63 | 21.85 | 21.52 | 21.76 | 43,716,565 | -0.04(-0.18%) |
| Feb 10, 2011 | 21.43 | 21.84 | 21.35 | 21.80 | 56,643,490 | +0.34(+1.58%) |
| Feb 09, 2011 | 21.53 | 21.60 | 21.42 | 21.46 | 44,594,707 | -0.18(-0.81%) |
| Feb 08, 2011 | 21.65 | 21.67 | 21.40 | 21.64 | 48,212,563 | -0.06(-0.25%) |
| Feb 07, 2011 | 21.74 | 21.86 | 21.63 | 21.69 | 43,643,571 | +0.01(+0.05%) |
| Feb 04, 2011 | 21.47 | 21.70 | 21.43 | 21.68 | 39,353,405 | +0.11(+0.51%) |
| Feb 03, 2011 | 21.41 | 21.65 | 21.30 | 21.57 | 39,842,272 | +0.01(+0.05%) |
| Feb 02, 2011 | 21.48 | 21.71 | 21.47 | 21.56 | 46,935,292 | +0.08(+0.37%) |
| Feb 01, 2011 | 21.49 | 21.70 | 21.28 | 21.48 | 60,956,294 | +0.02(+0.09%) |
| Jan 31, 2011 | 21.55 | 21.64 | 21.03 | 21.46 | 90,830,371 | +0.00(+0.00%) |
| Jan 28, 2011 | 21.76 | 21.89 | 21.35 | 21.46 | 55,144,486 | -0.29(-1.33%) |
| Jan 27, 2011 | 21.76 | 21.94 | 21.65 | 21.75 | 58,049,950 | +0.00(+0.00%) |
| Jan 26, 2011 | 21.77 | 21.89 | 21.66 | 21.75 | 57,184,847 | +0.20(+0.93%) |
| Jan 25, 2011 | 21.28 | 21.57 | 21.17 | 21.55 | 72,327,290 | +0.31(+1.46%) |
| Jan 24, 2011 | 21.03 | 21.24 | 20.93 | 21.24 | 82,357,947 | +0.42(+2.02%) |
| Jan 21, 2011 | 20.95 | 21.04 | 20.81 | 20.82 | 63,697,594 | -0.13(-0.62%) |
| Jan 20, 2011 | 20.94 | 20.95 | 20.62 | 20.95 | 56,168,106 | -0.06(-0.29%) |
| Jan 19, 2011 | 21.07 | 21.13 | 20.95 | 21.01 | 43,314,991 | -0.07(-0.34%) |
| Jan 18, 2011 | 21.03 | 21.20 | 20.94 | 21.08 | 55,253,284 | +0.00(+0.01%) |
| Jan 14, 2011 | 21.35 | 21.42 | 20.97 | 21.08 | 154,888,736 | -0.21(-0.99%) |
| Jan 13, 2011 | 21.26 | 21.32 | 21.08 | 21.29 | 104,066,599 | -0.01(-0.06%) |
| Jan 12, 2011 | 21.27 | 21.33 | 21.07 | 21.30 | 53,333,435 | +0.25(+1.20%) |
| Jan 11, 2011 | 20.83 | 21.12 | 20.74 | 21.05 | 64,440,311 | +0.36(+1.74%) |
| Jan 10, 2011 | 20.71 | 20.77 | 20.57 | 20.69 | 51,411,473 | +0.03(+0.15%) |
| Jan 07, 2011 | 20.71 | 20.77 | 20.27 | 20.66 | 74,806,061 | -0.11(-0.53%) |
| Jan 06, 2011 | 20.67 | 20.82 | 20.55 | 20.77 | 116,660,030 | -0.17(-0.81%) |
| Jan 05, 2011 | 21.19 | 21.21 | 20.90 | 20.94 | 61,493,994 | -0.21(-0.99%) |
| Jan 04, 2011 | 21.12 | 21.20 | 21.05 | 21.15 | 75,206,140 | +0.30(+1.44%) |
| Jan 03, 2011 | 21.01 | 21.05 | 20.78 | 20.85 | 57,914,674 | -0.18(-0.86%) |
| Dec 31, 2010 | 21.03 | 21.06 | 20.94 | 21.03 | 15,746,408 | +0.01(+0.05%) |
| Dec 30, 2010 | 20.95 | 21.08 | 20.93 | 21.02 | 18,875,990 | +0.08(+0.38%) |
| Dec 29, 2010 | 20.94 | 21.06 | 20.88 | 20.94 | 20,845,415 | +0.06(+0.29%) |
| Dec 28, 2010 | 20.81 | 20.93 | 20.76 | 20.88 | 21,169,561 | +0.04(+0.19%) |
| Dec 27, 2010 | 20.75 | 20.86 | 20.65 | 20.84 | 18,604,224 | +0.00(+0.00%) |
| Dec 23, 2010 | 20.84 | 20.92 | 20.70 | 20.84 | 27,976,262 | -0.05(-0.24%) |
| Dec 22, 2010 | 20.95 | 21.02 | 20.81 | 20.89 | 49,206,890 | -0.21(-1.00%) |
| Dec 21, 2010 | 21.27 | 21.27 | 21.08 | 21.10 | 34,073,328 | -0.13(-0.61%) |
| Dec 20, 2010 | 21.39 | 21.43 | 21.20 | 21.23 | 34,185,976 | -0.23(-1.07%) |
| Dec 17, 2010 | 21.31 | 21.49 | 21.27 | 21.46 | 57,138,061 | +0.16(+0.75%) |
| Dec 16, 2010 | 21.35 | 21.39 | 21.25 | 21.30 | 35,186,543 | +0.02(+0.09%) |
| Dec 15, 2010 | 21.35 | 21.50 | 21.28 | 21.28 | 42,688,894 | -0.19(-0.88%) |
| Dec 14, 2010 | 21.40 | 21.56 | 21.30 | 21.47 | 42,051,855 | -0.03(-0.14%) |
| Dec 13, 2010 | 22.01 | 22.02 | 21.34 | 21.50 | 78,296,293 | -0.41(-1.87%) |
| Dec 10, 2010 | 21.91 | 21.98 | 21.80 | 21.91 | 52,409,451 | +0.10(+0.46%) |
| Dec 09, 2010 | 22.01 | 22.07 | 21.72 | 21.81 | 79,874,686 | -0.01(-0.05%) |
| Dec 08, 2010 | 21.69 | 21.90 | 21.66 | 21.82 | 68,947,419 | +0.24(+1.11%) |
| Dec 07, 2010 | 21.84 | 21.86 | 21.58 | 21.58 | 46,982,564 | -0.12(-0.55%) |
| Dec 06, 2010 | 21.61 | 21.76 | 21.55 | 21.70 | 31,850,142 | +0.01(+0.05%) |
| Dec 03, 2010 | 21.63 | 21.78 | 21.62 | 21.69 | 43,907,374 | -0.01(-0.05%) |
| Dec 02, 2010 | 21.50 | 21.77 | 21.48 | 21.70 | 48,639,614 | +0.22(+1.02%) |