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1971
to
1974
2
1975
to
1979
2
1980
to
1984
5
1985
to
1989
2
1990
to
1994
0
1995
to
1999
8
2000
to
2004
31
2005
to
2009
27
2010
to
2014
132
2015
to
2019
65