*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 1970001308093
1970003036
1971001067
1972001056
1973002068
19740090514
19750040812
19760060814
197700501015
19780030912
197900401317
198000201113
198100401418
1982001202234
198300501217
1984001001828
198501601421
1986012001839
1987042412352
1988003002151
1989043601959
19902222401765
199161973120119
199265738117119
19932142136025305
19944557247023831
19953572217226820
19963538232021794
19971227243033504
1998338597029514
199937985026193
20000480112038630
20018329127040504
20022391122026541
20031395128225551
20042546111032691
20052160196046404
20062411217035665
20070409218750684
200812253322142621
2009479372069524
20101125547084757
2011058300117952
2012516109922431365
2013619164002751940
2014721172423632117
20152212234016022977
2016197273127213480
20173014341718634325
20182214376449764780
20193313413328725053
202016174972311226130
20211685022211566204
2022207386248804773
2023000000
Total25263113960858923955468