*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 197033110825
1970001012
19710710513
1972001012
1973001034
1974012047
1975013015
1976012069
19770030710
1978010034
1979011046
1980002068
19810030811
198200401216
1983013059
19840220610
19850140914
19860280212
19870590721
198804501221
198907200734
1990012100830
1991012140632
1992726210761
199306330011104
1994311347017180
1995542341991
199648538015142
199747034010118
19984943508141
1999157250689
2000710156012176
2001110844023176
2002010387011201
200321886509264
200432055209269
2005114993017260
2006494114017229
2007395142015255
20080215133014362
2009445168026243
2010271339013425
2011172340024437
20128293308028637
201315351396033795
20148389522046965
2015145725290931208
2016115396771791307
2017166106990871412
2018217029011981723
201932836104421102024
20201680614200932335
202113746141501042278
2022893670501041753
202303380142
Total2218840106615128021007