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

     Person |
      Forms |
  Submitted |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      2,296       22.96       22.96
          2 |      3,629       36.29       59.25
          3 |      1,877       18.77       78.02
          4 |        994        9.94       87.96
          5 |        529        5.29       93.25
          6 |        309        3.09       96.34
          7 |        156        1.56       97.90
          8 |         76        0.76       98.66
          9 |         44        0.44       99.10
         10 |         33        0.33       99.43
         11 |         17        0.17       99.60
         12 |         12        0.12       99.72
         13 |          8        0.08       99.80
         14 |          5        0.05       99.85
         16 |          4        0.04       99.89
         17 |          1        0.01       99.90
         19 |          2        0.02       99.92
         22 |          1        0.01       99.93
         24 |          1        0.01       99.94
         25 |          2        0.02       99.96
         28 |          1        0.01       99.97
         36 |          1        0.01       99.98
         37 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Apr 2016