*Excludes Observations that spanned multiple years

Pre 19700
19700
19710
19720
19730
19741
19750
19760
19770
19780
19792
19800
19810
19820
19830
19841
19850
19860
19871
19881
19890
19901
199117
199215
199318
19942
19956
19964
19971
199810
19990
20008
20013
20023
20031
20046
200521
20061
20070
20080
20090
201017
201181
201211
20132
20142
20153
201611
201717
201857
2019102
202076
2021124
2022141
2023102
20247
Total876