*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 1970001004555
1970001045
1971001034
1972000044
1973002079
197400100212
1975003058
19760040812
1977001078
1978000066
197900301013
1980000055
198100101213
19820020810
1983001089
198400401014
19850170816
198600801119
198700801018
1988021001022
1989031501028
199006711125
1991110140732
1992023160948
19931271601256
1994112139014175
1995110024212139
19961991307120
19970172101250
199809111013115
19990141901346
2000012028020168
200106738013118
2002111735112166
20030412301781
2004012828111168
20050164602890
20060263701780
2007010950017176
200801782216117
2009136302087
201001989120129
201101112024137
201200298148347
201301499173574
201401504285592
2015126502142797
2016026362187827
2017007664134904
2018117754143924
201925109941671277
202010865217309
2021001001
Total12119062163317149165