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

    persons |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      2,300       23.00       23.00
          2 |      3,552       35.52       58.52
          3 |      1,800       18.00       76.52
          4 |        992        9.92       86.44
          5 |        598        5.98       92.42
          6 |        306        3.06       95.48
          7 |        173        1.73       97.21
          8 |        104        1.04       98.25
          9 |         65        0.65       98.90
         10 |         35        0.35       99.25
         11 |         18        0.18       99.43
         12 |         13        0.13       99.56
         13 |          9        0.09       99.65
         14 |         11        0.11       99.76
         15 |          6        0.06       99.82
         16 |          1        0.01       99.83
         17 |          1        0.01       99.84
         20 |          6        0.06       99.90
         22 |          2        0.02       99.92
         23 |          1        0.01       99.93
         27 |          1        0.01       99.94
         32 |          1        0.01       99.95
         36 |          2        0.02       99.97
         40 |          1        0.01       99.98
         43 |          1        0.01       99.99
         77 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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