*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 1970001001
1970000000
1971000000
1972000000
1973000000
1974000000
1975000000
1976000000
1977000000
1978000000
1979000000
1980000000
1981000000
1982000000
1983000000
1984001001
1985000000
1986000000
1987000000
1988000000
1989000000
1990000000
1991000000
1992000000
1993001001
1994000000
1995001001
1996003003
1997003003
1998001001
1999001001
2000001001
2001002002
2002004004
2003004004
2004000000
2005003003
2006004004
200700100010
2008006006
2009006006
2010008008
2011005005
2012003003
2013004004
2014002002
2015006006
2016008008
2017005005
2018003003
2019004004
2020008008
202100100010
2022005005
2023000000
2024000000
Total0012300123