*Excludes Observations that spanned multiple years

Pre 19700
19700
19710
19720
19730
19740
19750
19760
19770
19780
19790
19800
19812
19820
19830
19840
19851
19860
19870
19880
19891
19901
19910
19921
19933
19940
19951
19960
19971
19980
19990
20000
20010
20020
20031
20041
20053
20060
20071
20080
20094
20102
20114
20125
20130
20140
20151
20160
20170
20180
20192
20200
20211
20221
20232
20240
Total39