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

  NUMBER OF |
  OCCUPANTS |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |         38        0.38        0.38
          1 |      6,585       65.85       66.23
          2 |      2,082       20.82       87.05
          3 |        660        6.60       93.65
          4 |        340        3.40       97.05
          5 |        152        1.52       98.57
          6 |         61        0.61       99.18
          7 |         17        0.17       99.35
          8 |         18        0.18       99.53
          9 |          8        0.08       99.61
         10 |          3        0.03       99.64
         11 |          4        0.04       99.68
         13 |          3        0.03       99.71
         15 |          1        0.01       99.72
         17 |          3        0.03       99.75
         25 |          1        0.01       99.76
         27 |          2        0.02       99.78
         36 |          1        0.01       99.79
         37 |          1        0.01       99.80
         99 |         20        0.20      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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