Frequencies for first 10,000 rows of str_veh variable in person dataset :

  Number Of |
      Motor |
    Vehicle |
   striking |
Non-Motoris |
          t |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,103       91.03       91.03
          1 |        885        8.85       99.88
          2 |         10        0.10       99.98
          3 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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