Date	Open	High	Low	Close	Volume	Change (%)
May 24, 2011	167.30	167.30	166.75	166.75	46	+1.45(+0.88%)
May 23, 2011	165.70	165.72	165.30	165.30	21,200	-4.25(-2.51%)
May 20, 2011	170.05	170.05	169.55	169.55	20	-0.45(-0.26%)
May 19, 2011	170.00	170.00	170.00	170.00	110	+1.75(+1.04%)
May 17, 2011		168.25	168.25	168.25	0	-1.70(-1.00%)
May 16, 2011	169.95	170.60	169.95	169.95	310	+3.54(+2.13%)
May 13, 2011	169.20	169.25	166.41	166.41	125,271	-1.34(-0.80%)
May 12, 2011	167.45	167.75	167.45	167.75	838	+1.75(+1.05%)
May 11, 2011	166.69	167.05	166.00	166.00	195	+0.95(+0.58%)
May 10, 2011	165.36	165.36	165.05	165.05	157	+0.80(+0.49%)
May 09, 2011	164.25	164.25	164.25	164.25	1,000	-2.05(-1.23%)
May 06, 2011	165.34	166.30	165.25	166.30	1,447	+3.05(+1.87%)
May 05, 2011	163.25	163.25	163.25	163.25	30	-2.50(-1.51%)
May 04, 2011	166.35	166.35	165.50	165.75	1,140	-0.75(-0.45%)
May 03, 2011	166.05	166.50	166.05	166.50	1,021	+2.00(+1.22%)

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