*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
19871
19880
19890
19900
19910
19920
19935
19941
19950
19960
19970
19980
19990
20000
20010
20020
20031
20041
20051
20061
20071
20083
20094
20101
20115
20121
20131
20140
20151
20162
20171
20187
20198
20208
20211
202215
20231
20240
Total71