*Excludes Observations that spanned multiple years

Pre 19702
19701
19710
19720
19730
19740
19751
19760
19770
19783
19792
19801
19810
19820
19830
19844
198518
19860
198712
198818
19895
19903
1991161
1992119
199367
199448
199555
19961
19976
199812
19993
20005
200123
200215
200337
200422
20056
200620
200710
200827
200921
20105
201121
201218
201321
201426
201511
201626
201723
201852
2019102
202014
202133
202226
202351
20241
Total1158