Frequencies for first 10,000 rows of ocupants variable in vehicle dataset :

  occupants |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |         63        0.63        0.63
          1 |      5,984       59.84       60.47
          2 |      2,208       22.08       82.55
          3 |        758        7.58       90.13
          4 |        429        4.29       94.42
          5 |        199        1.99       96.41
          6 |         69        0.69       97.10
          7 |         35        0.35       97.45
          8 |         20        0.20       97.65
          9 |         11        0.11       97.76
         10 |          2        0.02       97.78
         11 |          5        0.05       97.83
         12 |          5        0.05       97.88
         13 |          3        0.03       97.91
         14 |          2        0.02       97.93
         17 |          1        0.01       97.94
         18 |          1        0.01       97.95
         20 |          3        0.03       97.98
         22 |          1        0.01       97.99
         23 |          1        0.01       98.00
         34 |          1        0.01       98.01
         43 |          1        0.01       98.02
         97 |         23        0.23       98.25
         99 |        175        1.75      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 18 Apr 2016