| Date | Open | High | Low | Close | Volume | Change (%) |
|---|---|---|---|---|---|---|
| Feb 29, 2012 | 21.26 | 21.26 | 20.92 | 20.95 | 18,777 | -0.12(-0.57%) |
| Feb 28, 2012 | 20.99 | 21.10 | 20.97 | 21.07 | 18,325 | +0.11(+0.52%) |
| Feb 27, 2012 | 21.09 | 21.09 | 20.88 | 20.96 | 21,698 | +0.00(+0.00%) |
| Feb 24, 2012 | 20.96 | 21.06 | 20.80 | 20.96 | 36,552 | +0.01(+0.05%) |
| Feb 23, 2012 | 20.93 | 20.95 | 20.86 | 20.95 | 52,799 | +0.14(+0.67%) |
| Feb 22, 2012 | 20.88 | 20.88 | 20.73 | 20.81 | 26,766 | +0.07(+0.34%) |
| Feb 21, 2012 | 20.87 | 21.00 | 20.74 | 20.74 | 35,623 | -0.11(-0.53%) |
| Feb 17, 2012 | 20.57 | 20.85 | 20.57 | 20.85 | 13,320 | +0.33(+1.61%) |
| Feb 16, 2012 | 20.11 | 20.52 | 20.11 | 20.52 | 23,639 | +0.35(+1.73%) |
| Feb 15, 2012 | 20.43 | 20.43 | 20.15 | 20.17 | 21,173 | -0.13(-0.64%) |
| Feb 14, 2012 | 20.46 | 20.46 | 20.20 | 20.30 | 18,856 | -0.14(-0.68%) |
| Feb 13, 2012 | 20.44 | 20.50 | 20.41 | 20.44 | 31,271 | +0.30(+1.49%) |
| Feb 10, 2012 | 20.44 | 20.44 | 20.05 | 20.14 | 271,361 | -0.34(-1.66%) |
| Feb 09, 2012 | 20.57 | 20.57 | 20.38 | 20.48 | 12,493 | +0.06(+0.29%) |
| Feb 08, 2012 | 20.52 | 20.52 | 20.26 | 20.42 | 31,226 | +0.16(+0.79%) |
| Feb 07, 2012 | 20.25 | 20.26 | 20.12 | 20.26 | 42,857 | +0.06(+0.29%) |
| Feb 06, 2012 | 20.37 | 20.37 | 20.11 | 20.20 | 17,587 | -0.18(-0.88%) |
| Feb 03, 2012 | 20.37 | 20.52 | 20.36 | 20.38 | 66,233 | +0.08(+0.38%) |
| Feb 02, 2012 | 20.23 | 20.33 | 20.20 | 20.30 | 10,861 | -0.02(-0.09%) |
| Feb 01, 2012 | 20.21 | 20.32 | 20.17 | 20.32 | 51,989 | +0.24(+1.20%) |
| Jan 31, 2012 | 20.06 | 20.14 | 19.90 | 20.08 | 29,122 | +0.14(+0.70%) |
| Jan 30, 2012 | 20.02 | 20.02 | 19.87 | 19.94 | 37,594 | -0.18(-0.89%) |
| Jan 27, 2012 | 19.90 | 20.16 | 19.90 | 20.12 | 42,407 | +0.17(+0.85%) |
| Jan 26, 2012 | 19.99 | 20.08 | 19.92 | 19.95 | 24,121 | +0.05(+0.25%) |
| Jan 25, 2012 | 19.58 | 19.90 | 19.55 | 19.90 | 159,929 | +0.34(+1.74%) |
| Jan 24, 2012 | 19.59 | 19.74 | 19.55 | 19.56 | 203,592 | -0.03(-0.15%) |
| Jan 23, 2012 | 19.52 | 19.68 | 19.48 | 19.59 | 76,219 | -0.05(-0.25%) |
| Jan 20, 2012 | 19.56 | 19.64 | 19.51 | 19.64 | 19,607 | +0.14(+0.72%) |
| Jan 19, 2012 | 19.39 | 19.55 | 19.39 | 19.50 | 21,298 | +0.07(+0.36%) |
| Jan 18, 2012 | 19.11 | 19.44 | 19.11 | 19.43 | 74,301 | +0.39(+2.05%) |
| Jan 17, 2012 | 19.08 | 19.14 | 18.99 | 19.04 | 20,365 | +0.06(+0.32%) |
| Jan 13, 2012 | 19.01 | 19.05 | 18.86 | 18.98 | 10,511 | -0.07(-0.37%) |
| Jan 12, 2012 | 19.25 | 19.25 | 19.05 | 19.05 | 8,376 | -0.02(-0.10%) |
| Jan 11, 2012 | 18.95 | 19.07 | 18.90 | 19.07 | 20,570 | +0.13(+0.69%) |
| Jan 10, 2012 | 18.81 | 18.99 | 18.76 | 18.94 | 17,177 | +0.32(+1.72%) |
| Jan 09, 2012 | 18.60 | 18.64 | 18.46 | 18.62 | 32,495 | +0.13(+0.70%) |
| Jan 06, 2012 | 18.45 | 18.52 | 18.40 | 18.49 | 110,912 | -0.03(-0.16%) |
| Jan 05, 2012 | 18.42 | 18.55 | 18.36 | 18.52 | 16,029 | -0.04(-0.22%) |
| Jan 04, 2012 | 18.29 | 18.57 | 18.29 | 18.56 | 19,449 | +0.42(+2.32%) |
| Dec 30, 2011 | 18.10 | 18.15 | 18.04 | 18.14 | 77,968 | +0.02(+0.11%) |
| Dec 29, 2011 | 17.88 | 18.14 | 17.81 | 18.12 | 115,659 | +0.37(+2.08%) |
| Dec 28, 2011 | 17.73 | 18.09 | 17.65 | 17.75 | 80,697 | -0.24(-1.34%) |
| Dec 27, 2011 | 18.04 | 18.07 | 17.95 | 17.99 | 26,999 | -0.14(-0.76%) |
| Dec 23, 2011 | 18.16 | 18.35 | 17.87 | 18.13 | 20,345 | -0.80(-4.23%) |
| Dec 21, 2011 | 18.81 | 18.95 | 18.72 | 18.93 | 33,506 | -0.02(-0.11%) |
| Dec 20, 2011 | 18.75 | 18.95 | 18.67 | 18.95 | 151,386 | +0.45(+2.43%) |
| Dec 19, 2011 | 18.70 | 18.77 | 18.43 | 18.50 | 106,599 | -0.23(-1.23%) |
| Dec 16, 2011 | 18.74 | 18.86 | 18.61 | 18.73 | 22,137 | +0.10(+0.54%) |
| Dec 15, 2011 | 18.67 | 18.81 | 18.61 | 18.63 | 11,681 | -0.02(-0.11%) |
| Dec 14, 2011 | 18.61 | 18.69 | 18.50 | 18.65 | 44,362 | +0.01(+0.05%) |
| Dec 13, 2011 | 18.90 | 19.08 | 18.59 | 18.64 | 13,642 | -0.27(-1.43%) |
| Dec 12, 2011 | 19.07 | 19.07 | 18.74 | 18.91 | 6,724 | -0.25(-1.28%) |
| Dec 09, 2011 | 18.98 | 19.22 | 18.86 | 19.16 | 20,257 | +0.15(+0.76%) |
| Dec 08, 2011 | 19.02 | 19.24 | 18.78 | 19.01 | 50,797 | -0.09(-0.47%) |
| Dec 07, 2011 | 18.91 | 19.16 | 18.90 | 19.10 | 21,817 | +0.15(+0.79%) |
| Dec 06, 2011 | 18.83 | 19.05 | 18.82 | 18.95 | 26,773 | -0.04(-0.21%) |
| Dec 05, 2011 | 19.05 | 19.10 | 18.82 | 18.99 | 23,844 | +0.09(+0.48%) |
| Dec 02, 2011 | 19.11 | 19.16 | 18.89 | 18.90 | 22,102 | -0.11(-0.58%) |