*Excludes Observations that spanned multiple years

Pre 19700
19700
19710
19720
19730
19740
19750
19760
19770
19780
19790
19800
19811
19820
19830
19840
19850
19860
19870
19880
19892
19900
19910
19920
19930
19941
19950
19960
19970
19982
19992
20000
20011
20020
20031
20041
20051
20060
20070
20080
20091
20100
20111
20123
20130
20141
20151
20164
20172
20180
20191
20200
20210
20220
202314
20240
Total40