*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 197000209294
1970000033
1971000088
1972000055
1973000066
1974002057
1975101079
1976001089
1977000088
1978000088
19790020810
19800100910
198100001212
198200101112
198300201012
198400101314
198500201315
198610101517
198700401721
198813101621
198902201620
199052401526
1991741811444
1992691601142
19931062002056
19944241202161
1995515802048
1996619601142
199710131102155
19984161301649
1999461401741
200043252024112
2001362402356
2002374602379
20031142502262
2004317902049
20051141602556
20061122502563
2007293862580
2008324541771
200931370647
201006590570
2011005901675
2012122801950
201332321038
201443210028
2015148681293
201610031014
2017013206
Total111256731187181834