*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 197021702333
1970001012
1971000011
1972002024
1973110002
1974000033
1975000033
1976001012
19770150410
197812110317
1979222028
19806160417
198160401020
19821090818
19834260921
1984101001223
198591611128
198660611023
198710291830
198811080625
1989701601134
199085221945
19911011520881
199224172001172
19931273401467
19941994801894
19951865001185
19961621460891
199710113701371
199844215805128
1999421248512119
200021124232199
2001192146416106
2002212057011109
2003414838312142
2004413852115147
2005314251021145
200616164001587
200714144811390
2008911260854
200987410864
20101412460375
2011118680895
201248170736
201356130327
2014101580033
201540120117
201631990132
2017002002
Total5424301140214042537