| Date | Open | High | Low | Close | Volume | Change (%) |
|---|---|---|---|---|---|---|
| Feb 29, 2012 | 197.86 | 199.17 | 196.45 | 196.73 | 5,120,125 | -1.25(-0.63%) |
| Feb 28, 2012 | 197.75 | 198.96 | 197.43 | 197.98 | 3,167,381 | +0.45(+0.23%) |
| Feb 27, 2012 | 196.78 | 198.71 | 196.10 | 197.53 | 3,758,385 | -0.23(-0.12%) |
| Feb 24, 2012 | 198.38 | 198.56 | 196.61 | 197.76 | 3,353,242 | +0.15(+0.08%) |
| Feb 23, 2012 | 193.87 | 199.23 | 193.28 | 197.61 | 8,032,373 | +3.74(+1.93%) |
| Feb 22, 2012 | 193.03 | 194.74 | 192.75 | 193.87 | 3,275,729 | +0.48(+0.25%) |
| Feb 21, 2012 | 193.73 | 194.24 | 192.46 | 193.39 | 3,293,523 | -0.03(-0.02%) |
| Feb 17, 2012 | 193.71 | 193.86 | 192.30 | 193.42 | 3,746,679 | +0.40(+0.21%) |
| Feb 16, 2012 | 192.61 | 193.25 | 192.00 | 193.02 | 3,525,365 | +0.77(+0.40%) |
| Feb 15, 2012 | 192.31 | 193.44 | 191.26 | 192.25 | 4,020,839 | +0.03(+0.02%) |
| Feb 14, 2012 | 191.76 | 192.60 | 190.83 | 192.22 | 3,398,022 | -0.40(-0.21%) |
| Feb 13, 2012 | 193.31 | 193.69 | 191.74 | 192.62 | 2,458,136 | +0.20(+0.10%) |
| Feb 10, 2012 | 191.76 | 192.43 | 191.28 | 192.42 | 3,391,177 | -0.71(-0.37%) |
| Feb 09, 2012 | 193.03 | 194.46 | 192.55 | 193.13 | 3,876,230 | +0.18(+0.09%) |
| Feb 08, 2012 | 192.78 | 193.58 | 191.73 | 192.95 | 3,803,788 | -0.40(-0.21%) |
| Feb 07, 2012 | 192.45 | 194.14 | 191.97 | 193.35 | 3,432,953 | +0.53(+0.27%) |
| Feb 06, 2012 | 192.48 | 193.76 | 192.00 | 192.82 | 3,639,707 | -0.82(-0.42%) |
| Feb 03, 2012 | 192.93 | 194.13 | 192.54 | 193.64 | 4,521,636 | +2.11(+1.10%) |
| Feb 02, 2012 | 192.72 | 193.33 | 191.33 | 191.53 | 3,907,260 | -1.09(-0.57%) |
| Feb 01, 2012 | 193.21 | 194.81 | 192.41 | 192.62 | 5,088,767 | +0.02(+0.01%) |
| Jan 31, 2012 | 193.09 | 193.10 | 191.00 | 192.60 | 4,827,338 | +0.10(+0.05%) |
| Jan 30, 2012 | 189.39 | 192.73 | 188.22 | 192.50 | 4,358,840 | +2.04(+1.07%) |
| Jan 27, 2012 | 190.01 | 191.77 | 189.81 | 190.46 | 3,360,521 | -0.52(-0.27%) |
| Jan 26, 2012 | 191.79 | 192.79 | 190.47 | 190.98 | 4,004,615 | -0.77(-0.40%) |
| Jan 25, 2012 | 191.33 | 192.24 | 189.61 | 191.75 | 4,359,673 | -0.18(-0.09%) |
| Jan 24, 2012 | 188.63 | 192.30 | 188.52 | 191.93 | 5,345,638 | +1.95(+1.03%) |
| Jan 23, 2012 | 187.91 | 190.52 | 187.67 | 189.98 | 5,751,548 | +1.46(+0.77%) |
| Jan 20, 2012 | 185.77 | 188.97 | 184.75 | 188.52 | 12,850,227 | +8.00(+4.43%) |
| Jan 19, 2012 | 181.79 | 182.36 | 180.35 | 180.52 | 8,566,406 | -0.55(-0.30%) |
| Jan 18, 2012 | 179.83 | 181.60 | 179.50 | 181.07 | 4,600,571 | +1.07(+0.59%) |
| Jan 17, 2012 | 180.35 | 182.00 | 179.32 | 180.00 | 6,003,399 | +0.84(+0.47%) |
| Jan 13, 2012 | 179.48 | 179.61 | 177.35 | 179.16 | 5,279,348 | -1.39(-0.77%) |
| Jan 12, 2012 | 181.86 | 181.91 | 178.38 | 180.55 | 6,880,962 | -1.77(-0.97%) |
| Jan 11, 2012 | 180.73 | 182.81 | 180.50 | 182.32 | 4,110,852 | +1.01(+0.56%) |
| Jan 10, 2012 | 183.23 | 183.72 | 181.20 | 181.31 | 5,161,196 | -0.28(-0.15%) |
| Jan 09, 2012 | 182.20 | 182.27 | 180.27 | 181.59 | 5,201,166 | -0.95(-0.52%) |
| Jan 06, 2012 | 184.39 | 184.48 | 182.31 | 182.54 | 4,897,057 | -2.12(-1.15%) |
| Jan 05, 2012 | 184.81 | 185.03 | 183.10 | 184.66 | 4,463,067 | -0.88(-0.47%) |
| Jan 04, 2012 | 185.57 | 186.33 | 184.94 | 185.54 | 4,346,651 | +1.66(+0.90%) |
| Dec 30, 2011 | 186.18 | 186.18 | 183.85 | 183.88 | 3,531,804 | -2.30(-1.24%) |
| Dec 29, 2011 | 184.07 | 186.23 | 184.01 | 186.18 | 2,928,165 | +2.19(+1.19%) |
| Dec 28, 2011 | 185.19 | 185.40 | 183.34 | 183.99 | 2,871,488 | -0.96(-0.52%) |
| Dec 27, 2011 | 184.97 | 185.85 | 184.39 | 184.95 | 2,774,414 | +0.20(+0.11%) |
| Dec 23, 2011 | 183.11 | 184.85 | 181.89 | 184.75 | 3,052,791 | +3.28(+1.81%) |
| Dec 21, 2011 | 183.22 | 183.50 | 179.04 | 181.47 | 9,277,867 | -5.77(-3.08%) |
| Dec 20, 2011 | 185.50 | 187.33 | 184.76 | 187.24 | 4,732,315 | +4.35(+2.38%) |
| Dec 19, 2011 | 184.51 | 184.69 | 182.25 | 182.89 | 5,039,846 | -0.68(-0.37%) |
| Dec 16, 2011 | 188.01 | 188.01 | 181.91 | 183.57 | 11,849,737 | -3.91(-2.09%) |
| Dec 15, 2011 | 190.48 | 191.20 | 186.89 | 187.48 | 4,470,274 | -1.24(-0.66%) |
| Dec 14, 2011 | 189.84 | 190.28 | 188.00 | 188.72 | 5,057,643 | -2.43(-1.27%) |
| Dec 13, 2011 | 193.46 | 194.30 | 190.64 | 191.15 | 5,008,396 | -1.03(-0.54%) |
| Dec 12, 2011 | 193.64 | 193.90 | 191.22 | 192.18 | 3,796,097 | -2.38(-1.22%) |
| Dec 09, 2011 | 192.91 | 194.87 | 192.40 | 194.56 | 4,848,770 | +2.98(+1.56%) |
| Dec 08, 2011 | 192.48 | 193.80 | 191.07 | 191.58 | 4,367,651 | -2.47(-1.27%) |
| Dec 07, 2011 | 191.99 | 194.90 | 191.28 | 194.05 | 5,081,678 | +1.11(+0.58%) |
| Dec 06, 2011 | 190.65 | 193.53 | 190.32 | 192.94 | 4,144,853 | +2.10(+1.10%) |
| Dec 05, 2011 | 191.18 | 193.61 | 190.38 | 190.84 | 5,699,392 | +1.18(+0.62%) |
| Dec 02, 2011 | 189.92 | 191.33 | 189.45 | 189.66 | 4,962,414 | +0.21(+0.11%) |