*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 19702015090107
1970000044
197100101011
1972001067
1973000088
19740340512
1975001089
197601201215
197730401219
197800101314
197900801624
198000201416
198111701827
198201602431
198310501622
198400402125
198503401926
198611702130
1987151102340
198802802434
1989041512040
1990031302541
1991455812189
1992343701963
1993635603095
199414368129115
199510371027111
1996423802064
19971004903695
1998494403289
1999354812683
2000365003695
20017748140103
2002206902394
2003145212583
2004144102672
2005454903694
20062389132127
2007236002994
200811111831152
200920184054240
201080194153256
2011121279065357
2012923742148535
20139114581129608
2014453581147515
20151233911211618
20161204784270764
201717975842641052
2018131086322621150
2019151276932841083
20207395943311304
20218478533181118
202215573822741034
202300150419
202410170927
Total234156877743375012960