*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 1970008008
1970000000
1971000000
1972000000
1973000000
1974000000
1975001001
1976000000
1977005005
1978001001
1979001001
1980000000
1981000000
1982000000
1983002002
1984002002
1985002002
1986003003
1987005005
1988002002
1989003003
1990003003
199100110011
1992008008
1993004004
1994003003
199500120012
199600110011
199700130013
1998008008
199900160016
2000009009
2001004004
200200130013
200300120012
2004009009
200500110011
2006008008
200700140014
200800160016
200900190019
201000240024
201100200020
201200460046
201300460046
201400480048
201500620062
201600760076
201700640064
201800720072
201900670067
202000820082
202100680472
202200710071
2023003003
2024007007
Total0099504999