*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 1970007007
1970001001
1971005005
1972001001
1973000000
1974004004
1975001001
1976114006
1977105017
1978017019
1979105017
1980003025
198104130320
1982131027
1983004004
1984002013
1985000011
1986008019
1987014027
1988104016
19890070310
199000231125
1991015028
199205180023
199300230427
199404190225
199506110219
199601150218
1997107019
19981390215
199900100010
200001110416
200100250126
2002005038
200300110112
20040850417
200503370141
200600240226
200712100215
20080870318
20090070310
201004110217
201100110314
201212170222
201302210124
201405160122
201512220126
201612290335
2017212701040
201812170424
2019013330551
2020118420364
202115410148
2022010220032
2023014005
2024031004
Total16122682195916