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

     Person |
      Forms |
  Submitted |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,988       19.88       19.88
          2 |      3,726       37.26       57.14
          3 |      1,907       19.07       76.21
          4 |      1,056       10.56       86.77
          5 |        602        6.02       92.79
          6 |        313        3.13       95.92
          7 |        179        1.79       97.71
          8 |         90        0.90       98.61
          9 |         45        0.45       99.06
         10 |         26        0.26       99.32
         11 |         18        0.18       99.50
         12 |         14        0.14       99.64
         13 |         12        0.12       99.76
         14 |         10        0.10       99.86
         15 |          3        0.03       99.89
         16 |          2        0.02       99.91
         17 |          1        0.01       99.92
         18 |          3        0.03       99.95
         19 |          1        0.01       99.96
         20 |          1        0.01       99.97
         22 |          1        0.01       99.98
         35 |          1        0.01       99.99
         42 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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