*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 1970024028
1970001001
1971002002
1972001001
1973013015
1974020002
1975002002
1976022004
1977002002
1978002013
1979012003
1980011002
1981000011
1982011002
1983004004
1984002002
1985102014
19860080210
19870270312
1988026008
19890680216
19900840416
19913890121
1992256150073
1993181100193
199404042105430
199514121403430
19960316500321
199711311101144
19981320704332
199904090150
200002751202289
20010821702101
200212321800251
2003155130372
200402651302280
200501151700132
200611151402132
200701181503136
2008069270096
2009012230035
20100754601122
2011149251278
20120954205142
201301116203176
2014011912503247
2015163102011177
2016285132019238
20173130124027284
2018415822701390
2019013612101258
20200180110
2021031015
Total244159134911225655