*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 197010802130
1970002013
1971001045
1972001012
1973003036
1974024017
19750370515
1976023038
197703100518
19780430411
197936130527
198001110517
198100160723
198221180728
198302130015
19840050712
19850360413
198602110518
1987061401333
1988041501130
198906121827
1990316330557
19911210290657
199209280946
19939113701269
1994122355013103
199546440761
19961223400580
199772159013100
1998210510871
199938400960
2000344401162
2001854901375
2002237601091
2003337001086
2004465201072
2005207801696
200612690981
2007167901197
20080010707114
200942131013150
20104319708212
201137230114255
201203243028274
201323328019352
201478328023366
201530428032463
201631443035482
201793705031748
2018133773123813
201962619115643
202092803030844
202121591028622
202212506135545
202300160016
202400160521
Total160251757356438632