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

   ve_forms |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      5,774       57.74       57.74
          2 |      3,460       34.60       92.34
          3 |        573        5.73       98.07
          4 |        124        1.24       99.31
          5 |         42        0.42       99.73
          6 |         12        0.12       99.85
          7 |          5        0.05       99.90
          8 |          3        0.03       99.93
          9 |          4        0.04       99.97
         11 |          1        0.01       99.98
         16 |          1        0.01       99.99
         20 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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