*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 1970000000
1970001001
1971000000
1972000000
1973000000
1974000000
1975000000
1976000000
1977000000
1978000000
1979110002
1980000000
1981001001
1982001001
1983001001
1984001001
1985001001
1986002002
1987001001
1988001001
1989001001
1990000000
1991000000
1992001001
1993000000
1994032005
1995002002
1996021003
1997022004
1998071008
1999053008
2000021003
2001072009
200204820050
200303120033
200403400034
2005061007
200607020072
200708340087
200825810061
200901610017
2010071008
2011081009
201243110036
201302630029
201411261200139
201512550031
201601160017
201712260029
201812340028
201911740022
2020324160043
2021119110031
202202720029
2023030003
2024050005
Total1674911100876