*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 1970000000
1970000000
1971000000
1972000000
1973000000
1974000000
1975000000
1976000000
1977001001
1978000000
1979000000
1980000000
1981001001
1982000000
1983010001
1984000000
1985001001
1986000000
1987011002
1988000000
1989010001
1990020002
1991012003
1992001001
1993010001
1994020002
1995044008
1996034007
1997009009
1998014005
1999006006
2000023005
2001005005
200204140018
2003007007
2004006006
2005005005
2006003003
200700130013
200805130018
2009033006
2010013180031
201103220025
2012119130033
2013022100032
2014027240051
2015018230041
2016053340087
2017033320065
2018022270049
2019017380055
202009530062
202102430045
202205390044
2023002002
2024000000
Total127448400759