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

    vehicle |
     number |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      1,458       14.58       14.58
          1 |      5,784       57.84       72.42
          2 |      2,184       21.84       94.26
          3 |        406        4.06       98.32
          4 |        106        1.06       99.38
          5 |         36        0.36       99.74
          6 |         16        0.16       99.90
          7 |          7        0.07       99.97
          8 |          2        0.02       99.99
          9 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Oct 2016