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1971
to
1974
7
1975
to
1979
21
1980
to
1984
56
1985
to
1989
86
1990
to
1994
71
1995
to
1999
103
2000
to
2004
163
2005
to
2009
240
2010
to
2014
754
2015
to
2019
534