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

  Number of |
  Occupants |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |         56        0.56        0.56
          1 |      5,796       57.96       58.52
          2 |      2,500       25.00       83.52
          3 |        812        8.12       91.64
          4 |        428        4.28       95.92
          5 |        169        1.69       97.61
          6 |         69        0.69       98.30
          7 |         36        0.36       98.66
          8 |         12        0.12       98.78
          9 |          5        0.05       98.83
         10 |          8        0.08       98.91
         11 |          4        0.04       98.95
         12 |          1        0.01       98.96
         13 |          2        0.02       98.98
         14 |          1        0.01       98.99
         21 |          2        0.02       99.01
         25 |          1        0.01       99.02
         26 |          1        0.01       99.03
         32 |          1        0.01       99.04
         33 |          1        0.01       99.05
         36 |          1        0.01       99.06
         38 |          1        0.01       99.07
         44 |          1        0.01       99.08
         97 |         30        0.30       99.38
         99 |         62        0.62      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Apr 2016