Historical Prices

Date Open High Low Close Volume Change (%)
May 24, 2011 21.77 21.77 21.55 21.64 1,203,990 -0.11(-0.53%)
May 23, 2011 21.76 21.80 21.59 21.76 883,325 -0.07(-0.33%)
May 20, 2011 21.90 21.93 21.69 21.83 868,626 -0.16(-0.72%)
May 19, 2011 21.86 22.08 21.83 21.99 1,484,758 +0.23(+1.06%)
May 18, 2011 21.34 21.77 21.28 21.76 1,403,262 +0.40(+1.90%)
May 17, 2011 21.23 21.37 21.13 21.35 1,020,661 +0.06(+0.28%)
May 16, 2011 21.29 21.46 21.21 21.29 958,833 -0.09(-0.43%)
May 13, 2011 21.55 21.67 21.34 21.39 1,235,151 -0.16(-0.74%)
May 12, 2011 21.12 21.60 21.00 21.55 2,021,012 +0.56(+2.69%)
May 11, 2011 21.16 21.21 20.97 20.98 1,470,673 -0.13(-0.60%)
May 10, 2011 20.95 21.12 20.83 21.11 805,643 +0.18(+0.84%)
May 09, 2011 20.59 20.94 20.53 20.93 1,031,215 +0.36(+1.75%)
May 06, 2011 20.33 20.58 20.31 20.57 1,162,904 +0.29(+1.43%)
May 05, 2011 20.30 20.40 20.16 20.28 1,460,153 -0.17(-0.83%)
May 04, 2011 20.38 20.50 20.23 20.45 1,526,713 -0.01(-0.03%)
May 03, 2011 20.57 20.62 20.34 20.46 778,085 -0.11(-0.53%)
May 02, 2011 20.57 20.58 20.54 20.57 587,308 +0.09(+0.45%)
Apr 29, 2011 20.18 20.48 20.18 20.47 718,634 +0.22(+1.11%)
Apr 28, 2011 20.31 20.42 20.20 20.25 990,899 -0.08(-0.40%)
Apr 27, 2011 20.45 20.45 20.13 20.33 1,260,160 -0.08(-0.38%)
Apr 26, 2011 20.33 20.43 20.30 20.41 862,064 +0.04(+0.21%)
Apr 25, 2011 20.42 20.42 20.30 20.36 416,394 -0.03(-0.16%)
Apr 21, 2011 20.50 20.54 20.34 20.40 661,288 -0.04(-0.21%)
Apr 20, 2011 20.29 20.44 20.22 20.44 734,302 +0.32(+1.58%)
Apr 19, 2011 20.28 20.34 20.09 20.12 852,897 +0.01(+0.03%)
Apr 18, 2011 20.10 20.16 20.00 20.12 854,343 -0.07(-0.33%)
Apr 15, 2011 20.22 20.39 20.18 20.18 1,012,600 -0.11(-0.54%)
Apr 14, 2011 20.13 20.35 20.06 20.29 709,895 +0.13(+0.62%)
Apr 13, 2011 20.28 20.34 20.14 20.17 787,711 -0.06(-0.30%)
Apr 12, 2011 20.21 20.30 19.96 20.23 1,347,499 -0.06(-0.30%)
Apr 11, 2011 20.33 20.39 20.24 20.29 740,745 -0.01(-0.03%)
Apr 08, 2011 20.18 20.31 20.12 20.29 681,413 +0.16(+0.79%)
Apr 07, 2011 20.27 20.30 20.08 20.13 821,863 -0.14(-0.67%)
Apr 06, 2011 20.29 20.31 20.22 20.27 873,332 +0.12(+0.60%)
Apr 05, 2011 19.90 20.19 19.89 20.15 684,669 +0.22(+1.13%)
Apr 04, 2011 20.08 20.10 19.89 19.93 774,220 -0.16(-0.79%)
Apr 01, 2011 19.96 20.12 19.92 20.08 893,007 +0.21(+1.05%)
Mar 31, 2011 19.93 20.01 19.85 19.88 868,684 -0.03(-0.14%)
Mar 30, 2011 19.89 20.00 19.88 19.90 613,247 +0.08(+0.39%)
Mar 29, 2011 19.59 19.85 19.59 19.83 733,191 +0.23(+1.17%)
Mar 28, 2011 19.63 19.71 19.58 19.60 1,020,655 +0.07(+0.34%)
Mar 25, 2011 19.79 19.82 19.52 19.53 935,483 -0.17(-0.86%)
Mar 24, 2011 19.67 19.76 19.57 19.70 927,556 +0.08(+0.39%)
Mar 23, 2011 19.76 19.76 19.41 19.63 1,069,355 -0.22(-1.10%)
Mar 22, 2011 19.81 19.92 19.75 19.84 1,032,159 +0.04(+0.19%)
Mar 21, 2011 19.78 19.81 19.65 19.81 1,352,033 +0.18(+0.92%)
Mar 18, 2011 19.78 19.78 19.54 19.63 1,883,762 -0.04(-0.19%)
Mar 17, 2011 19.33 19.66 19.31 19.66 1,316,133 +0.39(+2.04%)
Mar 16, 2011 19.06 19.28 18.90 19.27 2,058,656 +0.21(+1.09%)
Mar 15, 2011 19.41 19.17 19.01 19.06 2,798,009 -0.34(-1.78%)
Mar 14, 2011 19.40 19.44 19.24 19.41 785,462 -0.14(-0.70%)
Mar 11, 2011 19.48 19.61 19.39 19.54 972,465 -0.05(-0.23%)
Mar 10, 2011 19.60 19.64 19.40 19.59 1,282,573 -0.09(-0.44%)
Mar 09, 2011 19.68 19.70 19.56 19.67 915,287 +0.11(+0.55%)
Mar 08, 2011 19.40 19.60 19.37 19.57 1,141,987 +0.18(+0.92%)
Mar 07, 2011 19.69 19.73 19.31 19.39 1,533,396 -0.26(-1.32%)
Mar 04, 2011 19.73 19.74 19.60 19.65 1,056,756 -0.04(-0.19%)
Mar 03, 2011 19.72 19.73 19.63 19.69 843,715 +0.06(+0.33%)
Mar 02, 2011 19.67 19.76 19.52 19.62 1,361,065 -0.05(-0.25%)
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