*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 1970102003
1970000000
1971001001
1972000000
1973001001
1974001001
1975001001
1976000000
1977002002
1978006006
1979009009
1980002002
1981003003
1982003003
1983002002
1984003003
1985106007
1986006006
1987006006
1988009009
1989009009
19901370011
19912460012
199204100014
199302110013
1994110170028
199544240032
199621110014
19971460011
19981580014
199901100011
200011250027
200111200022
200200400040
2003111380050
200402310033
200515110017
200601500051
200704340038
200800330033
200926440052
201019400050
201107400047
2012222590083
20133611100120
20140611000116
201541415900177
20160416100165
20173218500190
20180217500177
20191721700225
20201620800215
20215324400252
20221123200234
Total411582449002648