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

  Number of |
  Occupants |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |         40        0.40        0.40
          1 |      5,586       55.86       56.26
          2 |      2,639       26.39       82.65
          3 |        852        8.52       91.17
          4 |        441        4.41       95.58
          5 |        205        2.05       97.63
          6 |         86        0.86       98.49
          7 |         44        0.44       98.93
          8 |         13        0.13       99.06
          9 |         13        0.13       99.19
         10 |          6        0.06       99.25
         11 |          3        0.03       99.28
         12 |          2        0.02       99.30
         13 |          2        0.02       99.32
         14 |          1        0.01       99.33
         15 |          4        0.04       99.37
         20 |          1        0.01       99.38
         25 |          1        0.01       99.39
         31 |          1        0.01       99.40
         36 |          1        0.01       99.41
         43 |          1        0.01       99.42
         52 |          1        0.01       99.43
         99 |         57        0.57      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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