*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 1970321006
1970000000
1971011002
1972001001
1973000000
1974000000
1975030003
1976000000
1977005005
1978104005
1979011002
1980001001
1981012003
1982022004
1983014005
1984000000
1985001001
1986233008
19871560012
1988143008
19890740011
19904950018
199111060017
199231120016
1993226140042
1994528220055
199548100022
1996323140040
1997334120049
1998349140066
1999033100043
2000551160072
2001242120056
2002034200054
2003265280095
2004243110056
20054812300108
2006234320068
2007040340074
2008034430077
20090614800109
201078910100197
20112307800110
2012519113100327
2013618912300318
2014822016100389
2015828723800533
20161142027200703
2017837624400628
20181144035000801
20191851035400882
2020150006
2021020002
2022000000
Total13834952477006110