*Excludes Observations that spanned multiple years

Pre 19700
19700
19710
19720
19733
19741
19750
19760
19770
19781
19790
19800
19810
19820
19830
19843
19851
19862
19873
19880
19892
19902
19910
19920
19930
19944
19953
19960
19971
19981
19994
20001
20012
20020
20030
20040
20050
20060
20071
20080
20091
20102
20115
20121
201316
201433
20150
20161
20173
20185
201912
202029
20218
20225
202330
20240
Total186