*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 197011150017
1970000000
1971000000
1972000000
1973000000
1974050005
1975231006
1976016007
1977114140029
197871240032
1979740330080
198069210036
1981116160033
198233150021
198356293000115
1984126225200200
198557120024
198603110014
19871813140045
198852412600119
19891280011
19901280011
1991114660081
1992133200054
199332286500125
19944536000117
199546130023
199614326100107
19977846200153
19981412824100383
19994613810600290
200075806200217
2001637200063
20021549330097
20033916370092
200417330041
2005212170031
20061323160052
2007813150036
20082630210077
20091931280078
20102743290099
201136772300136
2012660200086
20131127140052
2014628160050
201512922900133
2016636550097
201717634500125
201811464600103
2019462260092
2020655350096
20219823300124
20229933200134
2023211170030
20241840013
Total78717991706004292