*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 1970126009
1970003003
1971000000
1972000000
1973000000
1974001001
1975020002
1976003003
1977025007
1978005005
1979035008
19801360010
1981003003
1982002002
1983203005
1984002002
1985012003
1986023005
1987025007
19880830011
19891770015
1990021140035
199151360024
19920870015
1993014120026
1994049140063
1995633180057
1996352140069
199731141500132
19980901600106
199901501300163
200011211700139
200141521200168
200212124100254
200302402300263
200433843100418
200511375500193
200622679300362
200712246900294
200881837900270
2009637011000486
2010220310300308
2011017911800297
2012331716700487
2013955623800803
2014359413500732
2015847814600632
20161143219700640
2017955416800731
20181054720500762
20191350022800741
202005610057
202103310034
2022200002
Total11973152430009864