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

  occupants |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |         39        0.39        0.39
          1 |      5,525       55.25       55.64
          2 |      2,481       24.81       80.45
          3 |        822        8.22       88.67
          4 |        522        5.22       93.89
          5 |        192        1.92       95.81
          6 |         88        0.88       96.69
          7 |         29        0.29       96.98
          8 |         32        0.32       97.30
          9 |         12        0.12       97.42
         10 |          3        0.03       97.45
         11 |          4        0.04       97.49
         12 |          6        0.06       97.55
         13 |          2        0.02       97.57
         14 |          2        0.02       97.59
         15 |          2        0.02       97.61
         19 |          1        0.01       97.62
         21 |          1        0.01       97.63
         26 |          1        0.01       97.64
         28 |          1        0.01       97.65
         32 |          1        0.01       97.66
         39 |          1        0.01       97.67
         48 |          1        0.01       97.68
         97 |         25        0.25       97.93
         99 |        207        2.07      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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