*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 1970101013
1970100001
1971002002
1972200002
1973201003
1974201003
1975304007
19768020010
1977106018
19789010010
197911060017
19805050010
198120180121
198200120012
1983006006
19841090010
1985103004
198620160018
198770100118
1988120140026
198930120116
199063180027
199180210029
199230190123
199342370043
199453480258
199590550064
199683440055
199775550269
199832480760
199963430456
200053550265
2001102540167
200252610270
20033210801114
200442710380
20055211601124
2006859000103
20075310700115
20081012400125
200919221002233
201020223901262
201118728400309
201217131005333
201316131504336
201417329104315
201513138207403
201618248208510
201716259705620
201818056704589
20198359407612
20206164902658
20212366404673
20224058704595
202311150017
2024000011
Total3717174890898020