*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 1970101013
1970100001
1971002002
1972200002
1973201003
1974201003
1975304007
19768020010
1977106018
19789010010
197911070018
19805050010
198120180121
198200130013
1983008008
19841090010
1985104005
198620160018
198770100118
1988120140026
198930120116
199063180027
199180220030
199230190123
199342370043
199453480258
199590550064
199683440055
199775550269
199832480760
199963440457
200053550265
2001102540167
200252610270
20033210801114
200442710380
20055211801126
2006859200105
20075310700115
20081012500126
200919221002233
201020223901262
201117728500309
201217131005333
201317131604338
201416329204315
201513138207403
201618248408512
201715259905621
201817056804589
20196359707613
20206164902658
20212366404673
20224058704595
202311200022
202430250129
Total3697175420898071