*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 19700120811
1970000000
1971010001
1972000000
1973000000
1974000000
1975000011
1976000022
1977002035
1978000011
1979000022
1980000022
1981000044
1982010045
1983011013
1984000033
1985102014
1986023027
1987104049
19880360312
19891150411
19900630413
19912670318
19920480618
199321270324
1994020140842
19951121501038
199611380325
1997016100834
1998213140332
1999212110833
2000123250857
2001219160845
200209270339
2003136280570
2004032200557
20052435805108
2006238300777
2007012420559
2008124490478
20090555706118
201015014401196
2011125185012223
2012198227014340
201319988113202
2014211450013179
2015214989013253
2016417711309303
20174179133011327
20182176140012330
20197253140020420
20202242229023496
20211176128022327
202212159305314
2023007007
202400100010
Total512368225013254995