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

    Vehicle |
     Number |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      6,741       67.41       67.41
          2 |      2,731       27.31       94.72
          3 |        388        3.88       98.60
          4 |         88        0.88       99.48
          5 |         22        0.22       99.70
          6 |          7        0.07       99.77
          7 |          3        0.03       99.80
          8 |          2        0.02       99.82
          9 |          2        0.02       99.84
         10 |          2        0.02       99.86
         11 |          1        0.01       99.87
         12 |          1        0.01       99.88
         13 |          1        0.01       99.89
         14 |          1        0.01       99.90
         15 |          1        0.01       99.91
         16 |          1        0.01       99.92
         17 |          1        0.01       99.93
         18 |          1        0.01       99.94
         19 |          1        0.01       99.95
         20 |          1        0.01       99.96
         21 |          1        0.01       99.97
         22 |          1        0.01       99.98
         23 |          1        0.01       99.99
         24 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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