*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 1970005005
1970003003
1971000000
1972000000
1973000000
1974000000
1975010001
1976001001
1977004004
1978003003
1979013004
1980115007
1981003003
1982002002
1983002002
1984001001
1985002002
1986012003
1987015006
1988072009
19891770015
1990016130029
199151160022
19920870015
1993012100022
1994045120057
1995625160047
1996346130062
199731101200125
1998083110094
19990143800151
200011161400131
200141491200165
200212033500239
200302352100256
200433792800410
200511154800164
200622649100357
200712126800281
200881717600255
2009636210500473
201011949700292
2011014910500254
201231713900213
2013030214900451
2014326311100377
2015112220035
2016006006
2017010001
Total5438161185005055