*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 1970022004
1970001001
1971000000
1972000000
1973001001
1974002002
1975000000
1976000000
1977010001
1978000000
1979000000
1980000000
1981000000
1982000000
1983011002
1984001001
1985011002
1986006006
1987006006
1988112004
1989021003
1990011002
1991102003
1992135009
1993233008
199456130024
1995135009
19961830012
1997111003
19980730010
199911050016
20004820014
20012360011
2002106007
20032570014
200421540021
20051590015
20060990018
2007422140040
200813130017
200946250035
201049300043
2011311290043
2012836330077
201314483900101
20143687500146
20157629803170
20161212912109271
20171512717401317
2018911613100256
201989913403244
2020913217402317
2021912017101301
2022812713301269
2023106007
2024000000
Total145121015080202883