*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 197000601521
1970001012
1971000000
1972001023
1973001012
1974001023
1975000000
1976002024
19770060410
1978001045
1979002024
1980003058
19811060310
1982003069
1983002024
19841050612
1985014049
1986014038
19870080614
198801110820
198900150520
19902690421
199138190131
199212170222
199312330642
199434500562
199514460556
199621310640
199711240733
199811510760
1999202301035
200030390749
200113300741
200211450956
200314310541
200411370645
2005254301666
2006034301359
2007136121380
2008015511471
2009126101175
2010018501096
201134118022147
201221130021154
201341221022248
2014422333322384
201535387046441
201673568253633
2017124601167685
2018228701153785
20191011657035713
2020001002838
2021000000
Total971154641106145477