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1973
to
1974
1
1975
to
1979
3
1980
to
1984
16
1985
to
1989
8
1990
to
1994
11
1995
to
1999
8
2000
to
2004
11
2005
to
2009
24
2010
to
2014
77
2015
to
2019
49