*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 197001702432
1970001001
1971002046
1972001045
1973000033
1974000055
1975011035
1976002046
1977005038
19780040610
19790070512
19800190919
1981103059
198200501217
19830060713
19840060612
198500301013
19861070715
198700130720
1988241701033
198904270839
199001070623
199109140730
1992244131969
1993217168011252
19942632133012779
1995250888115614
19960116876091253
1997036086014460
1998257115010598
1999033110852
2000361145017676
2001033039017386
2002148033011525
2003034444013401
2004152538012576
20050463501697
2006132342021387
2007457357114649
2008019858211269
200914854114118
20103184136014337
20112167104028301
20121245266030542
2013030335131397
2014179365039484
20151225201120664
2016427602063696
20171047109501671319
20185226651106799
2019324713384827
202021710850731177
202136142201971628
2022535130101591500
2023007007
2024000000
Total657900969812150019175