Proceedings Proceedings 
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March 1988 - $5
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April 1988 - $4
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May 1988 - $5
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June 1988 - $4
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July 1988 - $4
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August 1988 - $4
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September 1988 - $4
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October 1988 - $5
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November 1988 - $4
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December 1988 - $4
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January 1989 - $4
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February 1989 - $4
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March 1989 - $4
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April 1989 - $4
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May 1989 - $5
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June 1989 - $4
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July 1989 - $4
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August 1989 - $4
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September 1989 - $4
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October 1989 - $4
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November 1989 - $6
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December 1989 - $4
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January 1990 - $4
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February 1990 - $4
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March 1990 - $4
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April 1990 - $4
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May 1990 - $6
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June 1990 - $4
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