*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 1970001808199
1970003036
1971001067
1972001056
1973002068
19740090514
19750040812
19760060814
197700501015
19780030912
197900401317
198000301114
198100401519
1982001202234
198300501217
1984001001828
198501601421
1986012001839
1987042412352
1988003102152
1989043601959
19901222501765
199161976122124
199245741117120
19932141137025305
19944557247023831
19953572217226820
19964537232021794
19972227244033506
1998438497029514
199937886026193
20000480112038630
20014329131040504
20023390122026541
20032395134225558
20042546111032691
20053160198046407
20062411221035669
20073409224750693
200812253342142623
2009479376069528
20101125551084761
2011058320117954
2012516110022431366
2013619164102751941
2014621172823632120
2015218234816022980
2016187273327213481
20172814342118634327
20182216376949764787
20193214414428735065
202016164994311226151
20211775045211606231
20222365811411336977
202343155292012796629
202445185875014027340
202500140822
Total340633552870581219071793