*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 19701450212
1970001001
1971040015
1972000000
1973013004
1974022004
1975014005
1976024006
19771180010
1978101002
19790570012
1980016007
1981015006
1982013004
1983043007
1984030003
1985023016
198616100017
198711120216
19881890018
198938140126
199043690049
1991819150042
199208160024
1993330170050
19941763402113
1995437230064
1996537230267
19976913200129
19982723303110
1999242260070
20000752802105
20014963102133
20021754201119
200321247000196
200411223800161
200541259700226
200641668000250
20070588600144
200823812300163
200918115203237
201037121900293
201105434300397
2012517630700488
2013321315600372
2014102459300348
2015928611501411
2016338114701532
2017747122701706
20181359525200860
20191664626602930
2020362130200926
2021071621902937
2022265718101841
202303320035
2024000000
Total1376598393403010699