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

  occupants |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |         58        0.58        0.58
          1 |      5,766       57.66       58.24
          2 |      2,314       23.14       81.38
          3 |        790        7.90       89.28
          4 |        438        4.38       93.66
          5 |        205        2.05       95.71
          6 |         87        0.87       96.58
          7 |         38        0.38       96.96
          8 |         20        0.20       97.16
          9 |         14        0.14       97.30
         10 |          7        0.07       97.37
         11 |          2        0.02       97.39
         12 |          7        0.07       97.46
         13 |          2        0.02       97.48
         14 |          1        0.01       97.49
         15 |          1        0.01       97.50
         16 |          2        0.02       97.52
         21 |          3        0.03       97.55
         26 |          1        0.01       97.56
         31 |          1        0.01       97.57
         42 |          1        0.01       97.58
         97 |         28        0.28       97.86
         99 |        214        2.14      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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