*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 1970101703351
197000100111
1971003014
1972003014
1973003025
1974003036
1975022037
1976003069
19771150512
19780180615
19790070512
1980001078
19812480822
19820060713
1983013059
1984004048
19850080412
19860160411
19870180817
1988011101022
1989073901460
19900285311395
1991026560789
1992037270670
199308640114141
1994120452017274
1995323842111295
1996021338010261
199719435019149
19980842208114
19991163001158
2000016141018220
2001114542020208
2002013570010215
200359350217167
2004115860010229
200503949115104
200604558017120
2007017648020244
200827531011119
2009084801874
201035766017143
201102992017138
201208098024202
20132110125028265
20141113151044309
20150134184081399
20162195218083498
20171196296072565
20187224292080603
20195259291076631
2020559179188764
20218586490100743
2022747644097624
202311280535
202406190328
Total6151373082712249511