*Excludes Observations that spanned multiple years

Pre 19700
19700
19710
19720
19730
19740
19750
19760
19771
19780
19791
19800
19810
19820
19833
19840
19850
19860
19870
19880
19892
19900
19910
19920
19930
19942
19950
19960
19972
19980
19992
20000
20014
20020
20030
20042
20050
20060
20070
20080
20090
20100
20110
20121
20130
20140
20150
20161
20171
20187
20192
20200
20211
202211
20230
20240
Total43