*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 1970151007
1970000000
1971001001
1972002002
1973010001
1974022004
1975012003
1976024006
1977006006
1978110002
1979022004
1980021003
1981011002
1982024006
1983031004
1984025007
1985035008
198606110017
198702140016
198808100018
1989015120027
1990030130043
1991225180045
1992223250050
19933953000128
199431664400213
1995111242200157
199651293200166
199771635100221
199861954000241
199941192400147
2000112294000280
200191863600231
200251775200234
200382945500357
200433539700453
200562668700359
2006525313300391
2007421214600362
2008629418300483
2009817222700407
2010718238200571
201158939600490
20121248330400799
201336622390001048
201440798338001176
201540966461011468
2016561105499001660
2017431379570001992
2018501543612002205
2019561601650002307
2020291879864002772
2021361752791002579
2022341770639002443
202341350040
2024000000
Total5581773383700126662