Number of Alcor members at year end since inception

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1972
5
1973
?
1974
?
1975
?
1976
12
1977
15
1978
19
1979
23
1980
25
1981
24
1982
28
1983
29
1984
44
1985
71
1986
85
1987
100
1988
111
1989
145
1990
188
1991
272
1992
342
1993
369
1994
354
1995
367
1996
401
1997
430
1998
451
1999
475
2000
516
2001
555
2002
611
2003
661
2004
713
2005
786
2006
814
2007
838
2008
875
2009
913
2010
932
2011
957
2012
980
2013
971
2014
1,010
2015
1,054
2016
1,116
2017
1,143
2018
1,236
2019
1,287
2020
1,331