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

     veh_no |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      1,348       13.48       13.48
          1 |      5,886       58.86       72.34
          2 |      2,347       23.47       95.81
          3 |        323        3.23       99.04
          4 |         68        0.68       99.72
          5 |         22        0.22       99.94
          6 |          4        0.04       99.98
          7 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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