*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 197001605461
1970001012
1971001056
1972001056
1973001078
1974003003
1975000022
1976001034
197700201113
1978000022
1979010067
1980001067
1981001089
1982001067
1983012036
198400001414
19850050813
19860140914
19870230914
19880240511
198902301116
1990011169
19911391216
199209130729
19930950721
1994059701682
199502991746
199604330753
19970171001037
199804551758
19990440614
2000017501335
20010161001137
2002039180966
200301380425
20040781001199
2005123801042
20060351101359
2007029130951
2008018210948
2009011801433
20100372801277
20110133411664
201223077048157
201302883044155
2014036112030178
20151311610139332
2016043111064218
201704495033172
2018054119051224
2019265183053303
202011930084134
2021080008
2022000000
Total8906126159273107