*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 1970001001
1970000000
1971001001
1972000000
1973000000
1974000000
1975000000
1976000000
1977001001
1978000000
1979000000
1980000000
1981000000
1982000000
1983000000
1984000000
1985000000
1986001001
1987001001
1988000000
1989000000
1990000000
1991003003
1992000000
1993000000
1994008008
1995003003
1996003003
1997000000
1998001001
1999002002
2000002002
2001002002
2002002002
2003003003
2004001001
2005001001
2006001001
2007000000
2008003003
2009000000
2010004004
2011004004
2012002002
2013004004
2014004004
2015002002
2016003003
2017004004
2018007007
2019009009
2020003003
2021002002
2022003003
2023000000
2024000000
Total00910091