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

  occupants |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |         45        0.45        0.45
          1 |      5,668       56.68       57.13
          2 |      2,324       23.24       80.37
          3 |        845        8.45       88.82
          4 |        455        4.55       93.37
          5 |        216        2.16       95.53
          6 |         87        0.87       96.40
          7 |         36        0.36       96.76
          8 |         22        0.22       96.98
          9 |          7        0.07       97.05
         10 |          6        0.06       97.11
         11 |          4        0.04       97.15
         12 |          3        0.03       97.18
         13 |          2        0.02       97.20
         15 |          1        0.01       97.21
         17 |          1        0.01       97.22
         18 |          1        0.01       97.23
         19 |          1        0.01       97.24
         20 |          1        0.01       97.25
         38 |          1        0.01       97.26
         41 |          1        0.01       97.27
         97 |         29        0.29       97.56
         99 |        244        2.44      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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