*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 1970001006171
1970002013
1971003036
1972001056
1973000044
1974002024
1975001034
197600301215
197700701017
19781050814
1979110701230
1980110401227
198160801327
1982901001635
198391801230
198430101418
198511401925
1986311002236
198743702135
198874901838
1989211401532
19906132721462
199118123712088
19928234401691
1993671622152
1994132145025104
1995755022791
19968134101577
1997555712896
1998141357017101
19993113401967
20003115502392
200192147030107
2002834702078
20039174902095
2004141160022107
20051511105022153
200625565128124
200716868227121
2008171987120144
2009204130129184
20101913160022214
2011167124027174
20122910174056269
20132515256058354
201446211236169563
20158430333096543
201661214591133675
201792174990147755
201872225051143743
201947474610128683
202062225810103768
202122125860132752
202240113811115548
2023000000
Total90668259921719559552