*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 197021180526
1970002002
1971011002
1972001001
1973011002
1974005016
1975005005
1976122027
1977006028
1978013015
19790190111
1980014005
1981105039
198202130419
198300601016
198401401217
19850180918
198613150827
198702300739
198811270635
198905150828
1990171311133
1991818271458
1992102252329269
199356203518669
1994112528440102593
199572369371102424
19961240141092452
1997433235115387
199851634440111694
19991442801184
200031621480171689
2001174051017809
20020134754191411
20035986500161057
200411815420171875
2005320374120301
20062947881241062
200721307981231431
20080581106014701
20091194116021332
20108704192031935
201124461223138747
201237382701481060
2013189054332391397
201489354481681460
20156108057021181776
201612120776401392122
20177139984721612416
201812140698921342543
201971022108871552279
202081313172001573198
202161185122012612673
20225113392321092172
202306772000697
202424365301492
Total203345431099432181447586