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1979
1
1980
to
1981
4
1982
to
1983
0
1984
to
1985
0
1986
to
1987
0
1988
to
1989
0
1990
to
1991
0
1992
to
1993
0
1994
to
1995
0
1996
to
1997
0
1998
to
1999
1