*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 1970037095105
1970001045
19710210811
1972001078
19730120811
19740070613
19750210811
197601201114
197700401317
19780020911
197900101516
198000701522
198100401317
198201701725
198301401722
198402201721
198500511420
198600701825
198703901830
1988051502141
1989161901945
1990251002138
19918182501566
19925102911661
1993103868124141
1994463178022267
1995754146321231
1996181199016297
199726159025147
1998321146020190
19990262201967
2000422194027247
2001711169027214
2002311282215313
2003529268220324
2004218223027270
2005204081232175
2006214187132236
2007740336133417
2008164147124237
2009134108036179
20102141136045324
2011286134057279
20128158183261412
20135234284063586
20145331277297712
201542933463146792
2016112853463152797
2017143094300132885
201892893941133826
2019213255154134999
2020744678711891430
20211243267702351356
20221540648911571068
202301250127
2024000000
Total2104423800832242715100