*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 197000180018
1970000000
1971002002
1972000000
1973003025
1974002002
1975004004
1976003003
1977103004
1978002002
1979009009
1980006006
1981005016
1982007007
1983006017
1984003014
1985204006
198610120215
198710120114
198811100113
198921130420
199053170227
199122620066
199210210022
199333330140
199466400355
199546540266
199622550059
199713560565
199806340545
199912390850
200053270338
200162350346
200211560058
200317630475
200403620267
200512730480
200621630571
200720800385
200801940196
20094013902145
20106413601147
20116121109227
20127018107195
20135020207214
20149418903205
201510218905206
201614025809281
201711232905347
201812127903295
201913232304342
20205231506328
20211332307334
20221024200243
202300100010
2024000000
Total15576441401324777