*Excludes Observations that spanned multiple years

Pre 19700
19700
19710
19720
19730
19740
19750
19760
19770
19780
19790
19800
19810
19820
19830
19840
19850
19860
19870
19880
19890
19900
19910
19920
19930
19940
19950
19960
19970
19981
19990
20000
20011
20020
20031
20040
20052
20061
20070
20083
20091
20101
20111
20129
20132
20143
20150
20160
20172
20182
20192
20201
202111
202215
202327
20240
Total86