*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 197030140219
1970000000
1971004004
1972000000
1973007007
1974003003
1975003014
1976001023
1977009009
1978004015
1979008019
1980008008
198100140115
198202140016
198300100111
1984005016
1985203005
198610120114
1987105017
19882080111
198921150018
199025180025
199152580065
199230200023
199334260235
1994212370152
1995165370058
19961212430067
1997512470165
199836290139
199916260134
200056340146
200183260138
200232390044
2003210560068
200414430149
200505620067
200672670278
200710900192
20082210901114
200912912400145
201011715500173
20117321402226
201211324102257
201312225701272
201413720905234
201512228301298
201616130202321
201726030501332
201826440801439
201951241401468
20204545504468
20211359509608
20222046804474
202300180018
2024001001
Total29614954630595967