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

  occupants |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |         59        0.59        0.59
          1 |      5,651       56.51       57.10
          2 |      2,360       23.60       80.70
          3 |        824        8.24       88.94
          4 |        451        4.51       93.45
          5 |        222        2.22       95.67
          6 |         80        0.80       96.47
          7 |         40        0.40       96.87
          8 |         14        0.14       97.01
          9 |          9        0.09       97.10
         10 |          5        0.05       97.15
         11 |          4        0.04       97.19
         12 |          6        0.06       97.25
         13 |          1        0.01       97.26
         14 |          1        0.01       97.27
         15 |          1        0.01       97.28
         16 |          1        0.01       97.29
         21 |          1        0.01       97.30
         22 |          1        0.01       97.31
         26 |          1        0.01       97.32
         30 |          1        0.01       97.33
         97 |         31        0.31       97.64
         99 |        236        2.36      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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