*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 197012120015
1970000000
1971002002
1972000000
1973002002
1974003003
1975003003
1976001001
197700100010
1978101002
1979106007
1980005005
1981008008
1982103004
1983015006
1984007007
1985105006
1986027009
198731130017
198820170019
198902170019
199035190027
199194340047
199252310038
199346310041
1994612440062
199547450056
1996616430065
1997317590079
199837330043
199917390047
20005410800117
20014112000125
20020011900119
20035112301130
200414590064
200536870096
200654680077
200710810082
200811860088
20093112100125
20103013800141
20112115200155
20128216400174
20138122300232
201421119900221
201524326200289
201611028800299
201716537700398
2018121242100445
201910344800461
20204048100485
20215546900479
20223246600471
202301110012
202404310035
Total2091535607015970