*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 1970010001
1970000000
1971010001
1972000000
1973000000
1974020002
1975070007
1976002002
1977002002
1978011002
1979072009
1980045009
1981012003
1982002002
1983012003
1984001001
1985011002
1986010001
1987052007
1988013004
198901410015
199001310014
1991061007
19920750012
199302630029
199417860085
199521980029
199623050037
19971135900145
199818970097
1999172120085
20000195600201
20010132500137
200202151200227
200332121300228
200402512800279
200521611500178
200614492900479
200713151800334
200812462500272
200902286200290
201034863600525
201114025300456
201229014100944
201303384900387
201403951900414
201533974900449
201634027200477
201726059100698
2018159012000711
2019356611900688
20200152000152
202106800068
2022000000
Total348228945009207