*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 19701090212
1970000000
1971001001
1972000000
1973000000
1974001001
1975000000
1976001001
1977000000
1978002002
1979003003
1980001012
1981001012
1982002002
1983014005
1984003003
1985001001
1986104005
1987207009
1988018009
1989107008
199014130220
199142260133
199231110015
199332240029
199424310037
199582410152
199643220029
199712320136
199814150020
199912130016
200023200126
200134210129
200222210025
200340350140
200401310032
200562360044
200633260133
200700280028
200820430045
20091009700107
201012416900185
20116220602216
201210324203258
20133115402160
201410110702120
20159210903123
201617611904146
201722317701203
201825716401197
201918918800215
20203426200269
20214820401217
20222618801197
2023009009
202401100011
Total20610029490333288