*Excludes Observations that spanned multiple years

Pre 19702
19700
19710
19720
19730
19741
19753
19760
19770
19780
19791
19800
19812
19821
19833
19840
19851
19860
19870
19880
19890
19901
19910
19920
19930
19940
19951
19961
19970
19980
19991
20002
20013
20020
20030
20040
20054
20060
20073
20083
20097
20105
201116
20122
20138
20148
20154
20163
201714
201817
201954
202032
202146
202255
202339
202413
Total356