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

    vehicle |
     number |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      7,795       77.95       77.95
          2 |      1,808       18.08       96.03
          3 |        299        2.99       99.02
          4 |         69        0.69       99.71
          5 |         19        0.19       99.90
          6 |          7        0.07       99.97
          7 |          2        0.02       99.99
          8 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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