*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 19701070210
1970000000
1971001001
1972000000
1973000000
1974001001
1975000000
1976001001
1977000000
1978002002
1979003003
1980001012
1981001012
1982002002
1983014005
1984001001
1985001001
1986104005
1987207009
1988017008
1989106007
199014130220
199142250132
199231100014
199332240029
199424310037
199582410152
199643220029
199712310135
199814150020
199912130016
200023150121
200134200128
200213210025
200340280133
200401260027
200552310038
200633260133
200700260026
200820390041
20091009500105
201012416900185
20116220602216
201210324103257
20134115102158
201410110701119
20157210803120
201617611904146
201722317701203
201826716301197
201919918700215
20203426000267
20215820301217
20222618801197
2023009009
2024000000
Total20610028890323227