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

  Number of |
  Occupants |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |         53        0.53        0.53
          1 |      5,570       55.70       56.23
          2 |      2,458       24.58       80.81
          3 |        862        8.62       89.43
          4 |        450        4.50       93.93
          5 |        175        1.75       95.68
          6 |         86        0.86       96.54
          7 |         38        0.38       96.92
          8 |         19        0.19       97.11
          9 |          7        0.07       97.18
         10 |         10        0.10       97.28
         11 |          4        0.04       97.32
         12 |          1        0.01       97.33
         13 |          2        0.02       97.35
         14 |          2        0.02       97.37
         15 |          2        0.02       97.39
         17 |          1        0.01       97.40
         19 |          1        0.01       97.41
         20 |          1        0.01       97.42
         28 |          1        0.01       97.43
         36 |          1        0.01       97.44
         40 |          2        0.02       97.46
         45 |          2        0.02       97.48
         74 |          1        0.01       97.49
         97 |         14        0.14       97.63
         99 |        237        2.37      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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