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Facet browsing: Date Issued

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1999 1 1998 3 1997 1
1995 32 1994 26 1993 23
1992 22 1991 23 1990 15
1989 13 1988 6 1987 3
1986 13 1985 11 1984 10
1983 20 1982 29 1981 10
1980 2 1978 1