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

    Vehicle |
     Number |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      6,778       67.78       67.78
          2 |      2,707       27.07       94.85
          3 |        400        4.00       98.85
          4 |         74        0.74       99.59
          5 |         23        0.23       99.82
          6 |          9        0.09       99.91
          7 |          4        0.04       99.95
          8 |          1        0.01       99.96
          9 |          1        0.01       99.97
         10 |          1        0.01       99.98
         11 |          1        0.01       99.99
         12 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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