*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 1970105006
1970000000
1971010001
1972001001
1973001001
1974001001
1975010001
1976004004
1977011002
1978010001
1979021003
1980003003
1981001001
1982021003
1983001001
1984000000
1985123006
1986054009
198701120013
19882660014
19890790016
1990012140026
19917970023
199217120020
19931570013
1994127150043
1995214150031
1996325130041
1997063120075
1998262130077
1999272160090
2000166270094
20012762200100
200201244300167
20031964500142
200401163200148
20051733800112
20060964100137
200711082800137
2008156390096
200901008600186
20100724000112
20110727100143
201201479700244
201311115800170
201421373200171
201511435100195
201601524300195
201742015400259
201831854800236
201932065800267
202003120033
202111310015
2022010001
Total4527071134003886