*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 1970001001
1970000000
1971000000
1972000000
1973001001
1974000000
1975000000
1976000000
1977002002
1978001001
1979113005
1980040004
1981011002
1982102003
1983001001
1984000000
1985002002
1986001001
1987013004
1988111003
198911120014
19900670013
19912440010
19920280010
199325110018
1994110130024
1995421170042
1996626140046
1997245120059
1998224220048
1999019140033
2000023460069
20012554600103
20022737500150
20035865000141
20041784800127
20051895700147
20065974200144
200751185100174
200811015100153
20091417900121
2010013211000242
2011113916300303
201201579100248
2013018470065
201400230023
201501180019
2016001001
2017000000
Total4713891141002577