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

    Vehicle |
     Number |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      1,403       14.03       14.03
          1 |      5,859       58.59       72.62
          2 |      2,221       22.21       94.83
          3 |        362        3.62       98.45
          4 |         96        0.96       99.41
          5 |         36        0.36       99.77
          6 |         13        0.13       99.90
          7 |          5        0.05       99.95
          8 |          2        0.02       99.97
          9 |          2        0.02       99.99
         10 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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