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

     Person |
      Forms |
  Submitted |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      2,114       21.14       21.14
          2 |      3,807       38.07       59.21
          3 |      1,889       18.89       78.10
          4 |      1,023       10.23       88.33
          5 |        535        5.35       93.68
          6 |        286        2.86       96.54
          7 |        142        1.42       97.96
          8 |         72        0.72       98.68
          9 |         48        0.48       99.16
         10 |         32        0.32       99.48
         11 |         15        0.15       99.63
         12 |         11        0.11       99.74
         13 |          8        0.08       99.82
         14 |          3        0.03       99.85
         15 |          2        0.02       99.87
         16 |          3        0.03       99.90
         17 |          2        0.02       99.92
         20 |          2        0.02       99.94
         23 |          2        0.02       99.96
         30 |          1        0.01       99.97
         33 |          1        0.01       99.98
         37 |          1        0.01       99.99
         40 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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