*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 197008170025
1970001001
197101100011
1972000000
1973012003
1974010001
1975032005
1976003003
1977014005
1978001001
1979011002
1980001001
1981024006
1982023005
1983013004
1984001001
1985022004
1986043007
198706110017
1988036009
198908100018
199013630040
1991127110039
1992233110046
199301222600148
199421562800186
199511552500181
199631631600182
199702382400262
199821961500213
199901181900137
200002315000281
200133563201392
200201704500215
200314063700444
200403942500419
200522628001345
200612185600275
200701617500236
200801697700246
200911698700257
2010112015400275
201118117000252
2012135520400560
2013639128500682
2014550645600967
20156724544001274
20165777692001474
20177932685001624
20184884761001649
2019101079911002000
202002030225
20210910010
2022001001
Total66971256840415466