*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 1970003003
1970000000
1971000000
1972000000
1973000000
1974001001
1975001001
1976001001
1977002002
1978000000
1979002002
1980000000
1981002002
1982001001
1983002002
1984000000
1985002002
1986005005
1987005005
1988005005
1989008008
199000100010
199100150015
1992009009
1993007007
199400130013
199500230023
199600190019
199700120012
199800200020
199900110011
200000510051
200100370037
200200480048
200300230023
200400170017
200500130013
200600240024
200700360036
200800150015
200900390039
201000240024
201100530053
201200580058
201300250025
201400450045
201500870087
20160010900109
20170011500115
20180012900129
20190010500105
20200013300133
20210014000140
202200600060
2023002002
202400270027
Total001594001594