*Excludes Observations that spanned multiple years

Pre 197065
19700
19710
19720
19731
19741
19755
19762
19776
19782
19794
19803
19811
19822
19834
19843
198512
198622
198735
198856
198974
1990372
1991122
199247
199352
199431
199597
199638
1997909
1998737
1999448
20002113
20012162
20021655
20035799
20041973
20053324
20061564
20071597
20081733
20094058
20103128
20112216
20121252
20131360
20141610
20151281
20161261
20171938
20181048
2019350
20200
Total44573