*Excludes Observations that spanned multiple years

Pre 197059
19701
19712
19721
19731
19740
19752
19765
197714
19785
19790
19801
19810
19820
19831
19840
198537
198617
198741
198820
198947
199025
199162
199247
1993119
1994181
1995215
1996146
199789
199827
199941
200045
200124
200217
200344
200433
200541
200642
200721
200836
200937
201039
201132
201243
201345
201436
201537
201646
201725
201830
201933
202029
202149
202243
202333
20240
Total2066