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

     veh_no |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      1,306       13.06       13.06
          1 |      5,897       58.97       72.03
          2 |      2,318       23.18       95.21
          3 |        362        3.62       98.83
          4 |         86        0.86       99.69
          5 |         22        0.22       99.91
          6 |          6        0.06       99.97
          7 |          2        0.02       99.99
          8 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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