*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 1970000011
1970000000
1971000000
1972000011
1973000000
1974000000
1975000011
1976000022
1977000000
1978000011
1979001012
1980000011
1981002024
1982000000
1983000011
1984000000
1985001023
1986000011
1987000000
1988001001
1989000011
1990000033
1991001001
1992000011
1993000022
1994002024
1995002035
1996001012
1997004026
1998004026
1999001012
2000002024
2001002013
2002004026
2003002013
2004001034
2005002024
2006004004
2007005016
2008003036
2009006039
2010002024
2011007029
2012006017
2013003014
2014007007
201500100010
201600190019
201700110314
2018009009
201900110314
202000200121
202100130215
2022007018
2023000000
2024000000
Total00176066242