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October 1, 1996
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October 30, 1995
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October 1, 1994
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March 23, 1994
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November 1, 1992
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September 1, 1992
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April 22, 1991
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October 1, 1988
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October 11, 1982
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October 22, 1979
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May 29, 1969
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October 16, 1967
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October 1, 1965
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October 1, 1960
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September 15, 1958
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September 23, 1943
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August 6, 1942
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August 25, 1941