*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 1970001001
1970000011
1971000011
1972001023
1973002024
1974001012
1975002035
1976000033
1977003025
1978003025
1979002024
198002100214
1981002057
1982002057
1983004026
19840090413
198560100319
198601200425
198722140523
19881104401166
1989925801079
1990273313973
199193290546
1992103210539
1993421111129
1994111210942
199573251945
199605300843
1997121501129
199816120726
1999122101135
2000301601736
2001122601342
2002103601047
2003574501572
2004004001555
2005204201963
200610673018107
200741296017129
200857103019134
20091011111028160
201071487024132
201144103226139
201224144337190
2013319211062295
2014515233053306
2015982891106413
2016116352195465
20171864040106534
20181584791109612
2019166489275588
20201356910138847
202115106971148871
2022886191150786
2023114101053
202401300132
Total25720758611714667808