*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 197000302427
1970001012
1971000055
1972000022
1973000022
1974001012
1975011013
1976003036
19770050510
1978004059
19790070411
1980006028
1981003036
1982003036
1983003047
1984001045
1985002035
19860060713
19870060612
1988003036
19890240410
19900340310
19910160411
1992012036
19930240410
199417140426
199503110216
19961490418
19970750618
19980480517
199901240420
20000480618
200104110419
2002016170235
200303780348
200402290536
200503120520
2006159131276
200704141726
200805211633
200907151629
201002220529
201101190525
201202340844
20130104401165
201409430961
2015226201379
2016005101566
2017007701794
2018005601672
201950109016130
2020036901890
2021217301995
2022015401267
2023013004
2024024017
Total1224297743421577