*Excludes Observations that spanned multiple years

Pre 19700
19700
19710
19720
19730
19740
19753
19761
19772
19780
19791
19801
19818
19821
19832
19842
19852
19860
19870
19881
19895
19902
199111
199220
199310
19940
19953
19963
19977
19980
19994
20002
200112
20022
20031
20041
20050
20063
20071
20085
20094
201036
20114
20126
20139
201418
20158
201632
201716
201848
201972
202087
2021107
202269
202387
20240
Total719