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

    Vehicle |
     Number |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      6,787       67.87       67.87
          2 |      2,674       26.74       94.61
          3 |        405        4.05       98.66
          4 |         95        0.95       99.61
          5 |         24        0.24       99.85
          6 |          8        0.08       99.93
          7 |          3        0.03       99.96
          8 |          2        0.02       99.98
          9 |          1        0.01       99.99
         10 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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