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

    Vehicle |
     Number |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      6,911       69.11       69.11
          2 |      2,644       26.44       95.55
          3 |        314        3.14       98.69
          4 |         57        0.57       99.26
          5 |         15        0.15       99.41
          6 |         11        0.11       99.52
          7 |          8        0.08       99.60
          8 |          6        0.06       99.66
          9 |          4        0.04       99.70
         10 |          3        0.03       99.73
         11 |          3        0.03       99.76
         12 |          3        0.03       99.79
         13 |          3        0.03       99.82
         14 |          3        0.03       99.85
         15 |          3        0.03       99.88
         16 |          3        0.03       99.91
         17 |          2        0.02       99.93
         18 |          2        0.02       99.95
         19 |          1        0.01       99.96
         20 |          1        0.01       99.97
         21 |          1        0.01       99.98
         22 |          1        0.01       99.99
         23 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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