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

  number of |
persons not |
   in motor |
   vehicles |
in-transpor |
          t |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,601       76.01       76.01
          1 |      2,223       22.23       98.24
          2 |        132        1.32       99.56
          3 |         26        0.26       99.82
          4 |         12        0.12       99.94
          5 |          5        0.05       99.99
          9 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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