*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 1970001214
1970000202
1971000000
1972000000
1973000000
1974000000
1975000213
1976000303
1977000606
1978000303
1979000303
1980000505
1981000303
1982000202
1983000101
1984000202
1985000112
1986000112
1987001629
1988000527
19890019818
1990003161938
19910016714
19920039719
1993001141429
1994000215172
1995003182748
1996005163051
199700515120140
199800415107126
19990031891112
200000125102128
200100026139165
200200043123166
200300334154191
200400134263298
200500266116184
200600391153247
200700497156257
2008005120133258
2009002110101213
201000316071234
201100116981251
20120005499153
2013001129127257
2014000663096
2015000231235
2016000112
2017000000
2018000000
Total0057145223503859