*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 1970532110066
1970200002
1971201003
1972200002
1973201003
1974200002
1975200002
1976201003
1977204006
1978101002
19792090011
19803080011
198120100012
19822070110
19832080010
19842090011
198520120014
198620130015
19872090011
198830180223
198940160020
199050280033
199140290134
199250400045
199351340141
199453530162
199551630170
199640650069
199730560261
199840690073
199940600064
200050620067
200160770184
200250780083
20035116300169
20046011304123
20055113300139
20064112201128
20074014200146
20081017401176
20096026300269
20106028000286
20115131203321
20125030906320
20133035301357
20145039604405
20156147603486
201613157203589
20175269905711
20184170606717
20192380306814
20202177705785
20212086004866
20221077901781
Total2462092840639613