*Excludes Observations that spanned multiple years

Pre 197017
19706
19710
19721
19732
19743
19753
19764
19772
19783
19795
19803
19816
19825
19839
198428
198518
198630
198731
198831
198932
199041
199133
199242
199341
199434
199561
199671
199751
199855
199970
200054
200164
200270
200370
200449
200549
200634
200743
200840
200943
201044
201146
201234
201346
201446
201548
201642
201746
201844
201942
202043
202135
202231
20230
20240
Total1801