*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 1970000000
1970001001
1971000000
1972000000
1973000000
1974000000
1975000000
1976000000
1977000000
1978000000
1979000000
1980001001
1981001001
1982001001
1983001001
1984010001
1985001001
1986000000
1987000000
1988001001
1989001001
1990000000
1991000000
1992000000
1993020002
1994341008
1995021003
1996131005
19970910010
1998000000
199901100011
200001010011
200101210013
200201720019
200301340017
200403900039
2005041005
20060940013
200701820020
200801120013
2009025007
20100660012
20110850013
201201420016
2013022100032
2014119100030
2015026160042
20160820010
201721250019
201821800020
201901000010
20203880019
2021012110023
202201840022
2023002002
2024003003
Total1234811800478