*Excludes Observations that spanned multiple years

Pre 19700
19700
19710
19720
19730
19740
19750
19761
19770
19780
19791
19800
19810
19821
19830
19840
19850
19860
19870
19880
19892
19900
19910
19920
19933
19940
19954
19960
19971
19980
19990
20000
20010
20020
20030
20041
20050
20060
20070
20080
20092
20107
20116
20121
20134
20141
20150
20161
20170
20185
201924
202013
202130
202213
20230
20240
Total121