*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 197008170025
1970001001
1971090009
1972000000
1973012003
1974010001
1975032005
1976003003
1977014005
1978001001
1979011002
1980001001
1981024006
1982023005
1983013004
1984001001
1985022004
1986043007
198706110017
1988036009
198908100018
199013630040
1991127110039
1992233110046
199301212300144
199421492700178
199511502400175
199631621600181
199702382100259
199821951300210
199901181700135
200002314700278
200133562501385
200201704200212
200314063700444
200403922300415
200522618001344
200612034900253
200701536600219
200801637200235
200911578200240
2010112015400275
201118017000251
2012130414200447
2013528512500415
2014433122300558
2015345317800634
2016449722800729
2017465123200887
2018358828200873
20197713317001037
20200684463031150
20211819428001248
20221839256001096
202306150021
2024000000
Total551014339770514180