*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 1970000000
1970000000
1971000000
1972000000
1973000000
1974000000
1975010001
1976001001
1977010001
1978001001
1979010001
1980000000
1981001001
1982000000
1983000000
1984000000
1985010001
1986001001
1987002002
1988000000
1989003003
1990015006
1991104005
1992212005
1993101002
1994034007
19951460011
1996012003
1997101002
1998017008
1999015006
2000013004
2001015006
200201110012
200304110015
200403400043
20050850013
200644230031
200705240029
20080580013
2009026008
201014360041
2011018009
2012019130032
2013133190053
2014030320062
2015041400081
2016048300078
2017047470094
20182515200105
20191736400138
20202947000166
202119010000191
20220944500139
2023016007
202402130015
Total18678757001453