*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 197053100119
1970000000
1971000000
1972001001
1973002002
1974021014
1975001012
1976012003
1977001001
1978002002
1979004004
1980002002
1981000000
1982005016
1983002002
1984011002
1985004004
1986015006
198700160016
19880580215
1989023027
1990007007
199101110012
199212140017
199302130015
1994014140028
1995113220036
199608220030
199702140016
19981790017
19991180010
2000013280041
200113220026
2002014300044
200326250033
2004113140331
200529290141
200604290033
200703440047
200801301032
200905360041
2010027570185
201107750082
2012014740088
20131299301124
201403311201146
201554115900205
201635519400252
201724823600286
201836023900302
201926726504338
202035134100395
202114330200346
202205410000154
202300140014
2024000000
Total3566527521193472