*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 197023027133
1970100102
1971100001
1972200204
1973001012
1974300003
1975300003
1976100102
19774005110
197830111217
1979202228
19804066117
198110064020
19828019018
19839046221
1984120110023
198511196128
198610166023
198781109230
198860118025
1989110716034
199091822545
19918010521181
199211024201772
19931401234767
19941801948994
19951101850685
19968016462191
199713010371171
199850445821128
1999125424812119
200021321421299
2001164194621106
2002110215720109
2003123413848142
2004151415238147
2005210315142145
200615016401687
200713114481490
2008809261154
200980841764
20103014461275
2011801168895
201270417836
201330513627
2014001081533
201510412017
201610391932
2017000202
2018000000
Total4042154211404302537