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

  Number of |
  Occupants |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |         62        0.62        0.62
          1 |      5,714       57.14       57.76
          2 |      2,565       25.65       83.41
          3 |        847        8.47       91.88
          4 |        425        4.25       96.13
          5 |        152        1.52       97.65
          6 |         85        0.85       98.50
          7 |         30        0.30       98.80
          8 |         12        0.12       98.92
          9 |          8        0.08       99.00
         10 |          6        0.06       99.06
         11 |          2        0.02       99.08
         12 |          3        0.03       99.11
         13 |          1        0.01       99.12
         14 |          2        0.02       99.14
         20 |          1        0.01       99.15
         21 |          1        0.01       99.16
         41 |          1        0.01       99.17
         97 |          8        0.08       99.25
         99 |         75        0.75      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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