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*Excludes Observations that spanned multiple years

Pre 19700
19700
19710
19720
19730
19740
19750
19765
19770
19780
19791
19800
19815
19820
19830
19841
19850
19862
19870
19880
19890
19900
19910
19923
19933
19940
19951
19960
199721
19980
19990
20000
200114
20020
20030
20040
20050
20062
20070
20080
20090
201013
201143
20127
201314
20145
201513
201616
201721
201818
201924
202052
202110
202226
20236
20240
Total326