*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 1970001001
1970000000
1971000000
1972000000
1973000000
1974000000
1975000000
1976001001
1977000011
1978000000
1979000000
1980000000
1981000000
1982000000
1983000000
1984000000
1985000000
1986000000
1987000000
1988000000
1989000000
1990000000
1991000000
1992000000
1993000000
1994010001
1995000000
1996000000
1997000000
1998000000
1999000000
2000000000
2001000000
2002010001
2003000000
2004010001
2005100001
2006010001
2007001001
2008000000
2009060006
2010022004
2011000000
2012050005
2013035008
201413540040
2015007007
2016012014
2017102003
2018001001
2019000000
2020001001
2021011002
2022000000
2023000000
2024000000
Total357280290