*Excludes Observations that spanned multiple years

Pre 19700
19700
19711
19720
19730
19740
19750
19760
19770
19780
19791
19800
19810
19820
19830
19840
19850
19860
19870
19881
19890
19900
19910
19920
19930
19941
19952
19961
19970
19980
19992
20007
20010
20020
20030
20040
20050
20061
20070
20088
20090
20106
20117
20121
20130
20143
20150
20160
20174
20182
20194
202021
202110
202220
202321
20240
Total124