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January 2, 2002
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February 1, 2000
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March 1, 1999
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February 1, 1997
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January 1, 1996
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February 1, 1995
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October 3, 1993
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June 1, 1992
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June 25, 1990
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April 19, 1989
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February 10, 1987
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August 5, 1983
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June 1, 1979
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August 4, 1978
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January 14, 1976
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September 12, 1975
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January 10, 1974
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April 1, 1973
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September 17, 1971
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February 20, 1970
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September 22, 1967
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March 4, 1966