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

     veh_no |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      1,447       14.47       14.47
          1 |      5,790       57.90       72.37
          2 |      2,282       22.82       95.19
          3 |        372        3.72       98.91
          4 |         73        0.73       99.64
          5 |         21        0.21       99.85
          6 |         10        0.10       99.95
          7 |          4        0.04       99.99
          8 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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