*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 197000702330
1970001001
1971000033
1972001034
1973002024
1974011035
1975000033
1976004026
19770040610
1978000022
1979001045
1980001056
1981002057
1982003069
1983003036
1984003047
19850151411
19860070512
198702100517
198800160319
198902130722
19900880622
1991110151633
1992142121460
19931783309121
1994332755011396
199532725039337
199603024907358
19970696509143
199812851508309
1999017100835
2000019923013235
2001013328014175
2002117127214215
2003011824111154
2004018324010217
20050334311491
200619834114148
2007017748011236
20080624724115
2009054901872
2010043109013165
201100123013136
201235157022187
201324257018281
201426248026282
2015118330152402
201604350039393
201704390045439
201822393141439
201985378031422
202040523036563
202112508043554
202223318052375
202301200122
2024000011
Total3726924847157318322