*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 1970001012
1970000000
1971001001
1972000000
1973000000
1974000000
1975001001
1976000000
1977000000
1978000000
1979001001
1980001001
1981001012
1982100001
1983000000
1984000000
1985001001
1986100001
1987001001
1988101002
1989000000
1990000000
1991131005
199203980047
19932850116
199446230069
199524740053
199601420016
1997021110032
1998007007
199901200012
200001120013
200111210014
200201840022
20030770014
200401320015
20051226200229
200603130034
200704470051
20080152400156
200904520047
20106960021
20114840016
201211720020
20131900010
20142930014
201512060027
201601130014
201702260028
2018015100025
201901940023
202001410015
202102250027
202201420016
2023040004
2024000000
Total29948146031126