*Excludes Observations that spanned multiple years

Pre 19704
19700
19710
19720
19730
19740
19750
19760
19770
19781
19790
19801
19810
19822
19831
19840
19850
19861
19871
19882
19891
19901
19910
19928
19932
19941
19950
19961
19970
19981
19990
20000
200112
20020
20030
20041
20051
20060
20071
20084
200916
20100
20110
201214
20131
20141
20150
20160
20175
20183
20190
202019
202111
20221
20230
20240
Total118