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

  occupants |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |         52        0.52        0.52
          1 |      6,258       62.58       63.10
          2 |      2,051       20.51       83.61
          3 |        733        7.33       90.94
          4 |        455        4.55       95.49
          5 |        183        1.83       97.32
          6 |         79        0.79       98.11
          7 |         31        0.31       98.42
          8 |         17        0.17       98.59
          9 |          8        0.08       98.67
         10 |          8        0.08       98.75
         11 |          3        0.03       98.78
         12 |          1        0.01       98.79
         13 |          1        0.01       98.80
         14 |          2        0.02       98.82
         20 |          1        0.01       98.83
         22 |          2        0.02       98.85
         25 |          1        0.01       98.86
         29 |          1        0.01       98.87
         45 |          1        0.01       98.88
         48 |          1        0.01       98.89
         97 |          7        0.07       98.96
         99 |        104        1.04      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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