*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 1970014005
1970001001
1971040004
1972000000
1973001001
1974010001
1975001001
1976011002
1977020002
1978000000
1979100001
1980000000
1981001001
1982001001
1983000000
1984020002
1985012003
1986040004
19870570012
1988022004
1989071008
1990070007
1991152008
19920730010
199302020022
1994055110066
199502750032
199605330056
199704430047
199816060067
199903620038
2000046100056
200107390082
2002031120043
200318440089
200405840062
2005046100056
2006036100046
2007142130056
2008034190053
2009026240050
2010026340060
201107390046
2012158160075
2013066250091
20140684100109
201521413100174
201601013500136
201701624800210
201801295100180
201901627500237
202001474800195
202122105000262
202231915600250
2023000000
Total132288723003024