Frequencies for veh_no variable in miper dataset :

     veh_no |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        222       23.47       23.47
          1 |        530       56.03       79.49
          2 |        176       18.60       98.10
          3 |         16        1.69       99.79
          4 |          2        0.21      100.00
------------+-----------------------------------
      Total |        946      100.00

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