*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 1970003003
1970000000
1971001001
1972000000
1973000000
1974000000
1975000000
1976000000
1977001001
1978000000
1979001001
1980000000
1981000000
1982001001
1983001001
1984001001
1985002002
1986000000
1987001001
1988004004
1989004004
1990005005
199100100010
1992005005
1993006006
1994009009
199500130013
1996004004
1997008008
199800140014
1999004004
200000200020
200100200020
200200200020
200300250025
2004009009
200500140014
2006007007
200700140014
200800120012
200900150015
2010008008
201100100010
201200160016
201300140014
201400230023
201500280028
201600290029
201700480048
201800460046
201900560056
202000470047
202100590059
202200380038
2023002002
2024005005
Total0068300683