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

     Person |
      Forms |
  Submitted |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      2,149       21.49       21.49
          2 |      3,574       35.74       57.23
          3 |      1,912       19.12       76.35
          4 |      1,073       10.73       87.08
          5 |        559        5.59       92.67
          6 |        306        3.06       95.73
          7 |        171        1.71       97.44
          8 |        102        1.02       98.46
          9 |         58        0.58       99.04
         10 |         28        0.28       99.32
         11 |         25        0.25       99.57
         12 |         16        0.16       99.73
         13 |          4        0.04       99.77
         14 |         12        0.12       99.89
         15 |          4        0.04       99.93
         16 |          1        0.01       99.94
         20 |          1        0.01       99.95
         21 |          1        0.01       99.96
         23 |          1        0.01       99.97
         42 |          1        0.01       99.98
         67 |          1        0.01       99.99
         87 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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