*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 1970002002
1970001001
1971000000
1972000000
1973001001
1974000000
1975001001
1976001001
1977000000
1978000000
1979000000
1980000000
1981000000
1982000000
1983000000
1984000000
1985001001
1986040004
1987035008
1988012003
1989061007
1990060006
1991052007
19920730010
199301920021
199404760053
199502650031
199605130054
199704220044
199815620059
199903220034
200004290051
200106830071
2002028110039
200318440089
200405730060
2005044100054
200603370040
2007037110048
2008024160040
2009021200041
2010020310051
201103380041
2012041005
201301000010
2014053008
2015014005
2016011002
2017020002
Total2789214001005