Frequencies for first 10,000 rows of persons variable in accident dataset :

  Number of |
MV occupant |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |          9        0.09        0.09
          1 |      4,169       41.69       41.78
          2 |      2,643       26.43       68.21
          3 |      1,434       14.34       82.55
          4 |        748        7.48       90.03
          5 |        430        4.30       94.33
          6 |        262        2.62       96.95
          7 |        137        1.37       98.32
          8 |         65        0.65       98.97
          9 |         31        0.31       99.28
         10 |         20        0.20       99.48
         11 |         11        0.11       99.59
         12 |          8        0.08       99.67
         13 |          5        0.05       99.72
         14 |          6        0.06       99.78
         16 |          2        0.02       99.80
         17 |          5        0.05       99.85
         19 |          4        0.04       99.89
         20 |          1        0.01       99.90
         21 |          2        0.02       99.92
         22 |          1        0.01       99.93
         23 |          1        0.01       99.94
         24 |          1        0.01       99.95
         32 |          2        0.02       99.97
         33 |          1        0.01       99.98
         35 |          1        0.01       99.99
         57 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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