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October 8, 2013
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April 27, 2010
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May 1, 2008
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October 9, 2007
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November 14, 2006
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August 27, 2002
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May 5, 2000
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October 1, 1998
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September 7, 1995
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June 1, 1994
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June 1, 1993
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September 16, 1992
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February 6, 1992
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March 21, 1991
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March 22, 1990
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May 22, 1989
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May 16, 1988