Koppers Holdings Inc (NY: KOP )

Date	Open	High	Low	Close	Volume	Change (%)
Apr 30, 2013	40.99	41.41	40.60	41.30	118,928	+0.47(+1.15%)
Apr 29, 2013	40.32	41.38	40.18	40.83	73,592	+0.75(+1.88%)
Apr 26, 2013	41.04	41.13	39.47	40.08	145,528	-1.05(-2.56%)
Apr 25, 2013	41.35	41.50	40.98	41.13	60,688	-0.25(-0.61%)
Apr 24, 2013	40.57	41.45	40.48	41.38	62,195	+0.89(+2.21%)
Apr 23, 2013	39.96	40.57	39.73	40.49	36,579	+0.81(+2.04%)
Apr 22, 2013	39.81	39.81	38.57	39.68	67,314	-0.07(-0.17%)
Apr 19, 2013	38.89	40.11	38.56	39.75	156,833	+0.99(+2.55%)
Apr 18, 2013	39.26	39.41	38.50	38.76	77,073	-0.34(-0.87%)
Apr 17, 2013	39.48	40.03	38.86	39.10	129,926	-0.84(-2.10%)
Apr 16, 2013	39.21	40.09	39.03	39.93	90,341	+1.15(+2.96%)
Apr 15, 2013	41.05	41.32	38.60	38.79	138,601	-2.54(-6.14%)
Apr 12, 2013	41.03	41.43	41.02	41.33	69,096	-0.01(-0.02%)
Apr 11, 2013	41.38	41.55	41.01	41.34	73,096	+0.02(+0.05%)
Apr 10, 2013	40.78	41.74	40.24	41.32	148,698	+0.72(+1.78%)
Apr 09, 2013	40.11	40.96	40.05	40.59	132,843	+0.61(+1.53%)
Apr 08, 2013	39.51	40.29	39.51	39.98	137,455	-0.25(-0.63%)
Apr 05, 2013	39.51	40.46	39.09	40.24	122,097	-0.39(-0.95%)
Apr 04, 2013	40.80	41.02	40.16	40.62	123,646	-0.20(-0.48%)
Apr 03, 2013	40.80	41.11	40.52	40.82	158,341	+0.08(+0.18%)
Apr 02, 2013	41.02	41.02	40.54	40.74	66,996	+0.11(+0.28%)
Apr 01, 2013	41.20	41.20	40.11	40.63	75,066	-0.73(-1.77%)
Mar 28, 2013	41.34	41.58	41.24	41.36	82,725	+0.01(+0.02%)
Mar 27, 2013	41.48	41.68	41.15	41.35	130,551	-0.62(-1.48%)
Mar 26, 2013	42.86	43.00	41.76	41.98	63,781	-0.58(-1.37%)
Mar 25, 2013	42.29	42.79	42.24	42.56	107,824	+0.30(+0.71%)
Mar 22, 2013	41.98	42.29	41.73	42.26	75,816	+0.35(+0.83%)
Mar 21, 2013	41.43	42.25	41.15	41.91	98,005	+0.01(+0.02%)
Mar 20, 2013	41.38	42.02	41.05	41.90	91,582	+0.79(+1.92%)
Mar 19, 2013	40.68	41.19	40.68	41.11	87,961	+0.39(+0.97%)
Mar 18, 2013	39.97	40.90	39.97	40.71	53,037	+0.24(+0.58%)
Mar 15, 2013	40.23	40.82	40.09	40.48	118,608	+0.08(+0.21%)
Mar 14, 2013	39.99	40.40	39.69	40.39	53,895	+0.44(+1.11%)
Mar 13, 2013	40.03	40.13	39.70	39.95	83,247	-0.13(-0.33%)
Mar 12, 2013	39.83	40.43	39.83	40.08	47,776	-0.01(-0.02%)
Mar 11, 2013	40.31	40.33	39.75	40.09	65,688	-0.48(-1.18%)
Mar 08, 2013	40.48	40.67	40.02	40.57	79,002	+0.65(+1.63%)
Mar 07, 2013	39.17	40.03	38.97	39.92	94,246	+0.74(+1.90%)
Mar 06, 2013	38.81	39.26	38.74	39.18	101,407	+0.48(+1.24%)
Mar 05, 2013	38.25	38.94	38.25	38.70	98,338	+0.68(+1.78%)
Mar 04, 2013	38.11	38.25	37.67	38.02	102,676	-0.42(-1.10%)
Mar 01, 2013	38.39	38.77	37.66	38.45	72,934	-0.56(-1.45%)
Feb 28, 2013	38.42	39.27	38.42	39.01	74,458	+0.57(+1.49%)
Feb 27, 2013	37.55	38.80	37.55	38.44	59,780	+0.79(+2.10%)
Feb 26, 2013	37.54	37.73	37.23	37.65	48,776	-1.40(-3.59%)
Feb 22, 2013	38.59	39.24	38.29	39.05	57,682	+0.57(+1.49%)
Feb 21, 2013	38.57	39.07	38.06	38.48	67,382	-0.17(-0.44%)
Feb 20, 2013	40.05	40.05	38.54	38.65	89,678	-1.57(-3.91%)
Feb 19, 2013	38.65	40.26	38.65	40.22	159,400	+1.26(+3.23%)
Feb 15, 2013	39.56	39.62	38.52	38.96	97,366	-0.02(-0.05%)
Feb 14, 2013	40.01	41.13	38.27	38.97	145,206	-1.04(-2.61%)
Feb 13, 2013	39.59	40.02	39.27	40.02	70,795	+0.35(+0.87%)
Feb 12, 2013	39.52	39.78	39.02	39.67	68,959	+0.24(+0.62%)
Feb 11, 2013	39.21	39.56	38.71	39.43	48,425	+0.07(+0.19%)
Feb 08, 2013	38.84	39.57	38.65	39.35	65,250	+0.49(+1.25%)
Feb 07, 2013	38.72	38.89	38.16	38.87	54,925	+0.22(+0.56%)
Feb 06, 2013	38.28	38.79	38.20	38.65	78,302	+0.32(+0.83%)
Feb 04, 2013	38.40	38.63	37.82	38.34	92,792	-0.49(-1.25%)

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