*Excludes Observations that spanned multiple years

Pre 19706
19700
19710
19720
19730
19740
19750
19760
19770
19780
19790
19800
19811
19821
19831
19841
19850
19860
19871
19881
19891
19901
19911
19921
19930
19941
19952
19960
19970
19980
19991
20001
20011
20020
20030
20040
20050
20067
20076
20087
20091
20100
20111
20120
20130
20141
20150
20160
20170
20183
20194
20206
20212
20229
202314
20248
Total91