*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 1970003047
1970000011
1971000000
1972000000
1973002024
1974000000
1975000022
1976010023
1977007029
1978001001
1979002013
1980007007
198100100212
1982002035
1983005027
1984003014
1985006017
198600120214
19874170315
19881470517
19891170312
19902480216
199156150228
199204200428
199331210227
1994110230943
199544240335
199633270235
199702230732
199847250541
1999032401239
2000323201249
200163200837
200202350340
200344350851
200403340542
2005211390658
200608470863
200700520860
200802560563
200930730783
201002810588
20110012609135
201263131012152
20133013606145
201441133015153
201564174019203
2016122260023297
2017145248014281
201813132108343
2019112292010315
20204832006338
202123303012320
202200172015187
2023009009
202400220022
Total121117344203083988