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

  occupants |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |         40        0.40        0.40
          1 |      5,923       59.23       59.63
          2 |      2,341       23.41       83.04
          3 |        775        7.75       90.79
          4 |        478        4.78       95.57
          5 |        173        1.73       97.30
          6 |         71        0.71       98.01
          7 |         34        0.34       98.35
          8 |         16        0.16       98.51
          9 |         10        0.10       98.61
         10 |          4        0.04       98.65
         11 |          5        0.05       98.70
         12 |          5        0.05       98.75
         13 |          3        0.03       98.78
         14 |          1        0.01       98.79
         15 |          5        0.05       98.84
         21 |          2        0.02       98.86
         22 |          1        0.01       98.87
         25 |          1        0.01       98.88
         26 |          1        0.01       98.89
         27 |          1        0.01       98.90
         33 |          1        0.01       98.91
         43 |          1        0.01       98.92
         60 |          1        0.01       98.93
         97 |          3        0.03       98.96
         99 |        104        1.04      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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