*Excludes Observations that spanned multiple years

Pre 197011
19700
19719
197258
197317
19742
19751
19762
19770
19780
19790
19801
19810
19820
19830
198473
198583
1986193
1987357
1988702
1989204
199062
1991338
1992149
1993647
1994340
1995317
1996218
1997182
199829
1999178
2000144
2001141
200258
200350
200478
200554
200636
200738
200837
200934
201054
201157
201266
201359
201462
201560
201655
201744
201815
201911
20201
20210
Total5327