*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 1970001012
1970000000
1971000033
1972000022
1973001023
1974020013
1975000011
1976010045
1977010056
1978000022
1979000044
1980001034
1981000077
1982000055
198301101012
19840110911
1985000077
198600501116
1987011101224
198802401723
198903201419
199016501527
199164951034
1992491811648
19931301411763
199425736023118
1995881202351
19961213412077
19971281703379
19983422702496
19992311902274
20002273413599
200112841135106
200213261222118
200333842226111
200415831032122
200535754134149
200613389136160
200765087639188
2008154127936227
2009123134050208
2010428169167269
2011122273165362
201281442760109537
201342463515122728
201482863232159778
20151438148832911177
2016540656513531330
20171151270343451575
20181452559833281468
201916598862103041790
20206611122813582204
20210685124125622490
2022186773823201928
2023000000
Total1415959873366405118950