*Excludes Observations that spanned multiple years

Pre 19702
19700
19710
19720
19734
19740
19750
19760
19770
19781
19790
19801
19810
19821
19830
19844
19851
19860
19874
19882
19890
19900
19911
19920
19930
19941
19955
19964
19971
19981
19993
20003
20011
20020
20030
20040
20051
20060
20070
20080
20091
20101
201113
201271
201348
201410
201517
201681
20171
201818
201931
202020
202126
202223
202326
20241
Total429