*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 1970002506186
1970004015
1971004037
1972004059
1973001056
1974004026
1975003036
197600501217
197700701017
19781080817
1979110801231
1980110401227
198160801428
1982901001635
198391801230
198430201419
198511601927
1986311102237
198743702135
1988841001840
1989211501634
19906123021464
199119123812090
1992895801691
1993661822153
1994142144025104
1995854922791
19968114301577
1997555812897
1998151258017102
1999493701969
2000395802393
200110861031110
2002725002079
200391556020100
2004141166022113
20051511108022156
200626566128126
200716870227123
2008171993120150
2009214132129187
20101913165022219
2011167126027176
20123110181056278
20132715267058367
201446211237169564
20158430337097548
201662214601133677
201792185020147759
201871225071143744
201947564700128701
202062255970104788
202122125900132756
202240113961119567
2023111420054
202440110520
Total93365762351719709812