*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 197030902335
1970001012
1971000077
1972000033
1973000033
1974000044
1975000022
1976001056
19773740620
1978151010430
197937860253
198051220459
198114320524
19821020710
1983002057
198420201115
1985102069
19860030912
198710701321
198830301420
19890160815
19900141915
199103270535
199200140822
1993021901031
1994022001739
1995012211741
199602220933
1997113411350
199822250736
1999523901359
2000275001473
2001033201954
2002114001254
2003533401557
2004022301843
2005111901637
2006311201733
2007212501644
2008244241466
2009213301046
201020460654
2011018501399
2012012303054
201310200425
2014036009
201501160320
20160080210
2017002024
Total1607779574611500