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

    vehicle |
     number |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        953        9.53        9.53
          1 |      5,806       58.06       67.59
          2 |      2,558       25.58       93.17
          3 |        452        4.52       97.69
          4 |        117        1.17       98.86
          5 |         47        0.47       99.33
          6 |         41        0.41       99.74
          7 |         13        0.13       99.87
          8 |          5        0.05       99.92
          9 |          7        0.07       99.99
         10 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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