*Excludes Observations that spanned multiple years

Pre 197073
19701
19718
19723
19730
19742
19753
19764
19771
19781
19791
19800
19810
19821
19832
19849
1985112
198670
198775
1988404
198949
199021
1991136
199243
1993223
1994176
1995255
199685
199762
199820
199938
200043
200114
200219
200354
200452
200563
200660
200749
200872
200963
201064
201160
201282
201382
201474
201563
201650
201754
201819
201926
20202
202117
202217
20231
20240
Total2978