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

    VEHICLE |
    REMOVAL |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,248       12.48       12.48
          2 |      7,463       74.63       87.11
          3 |      1,030       10.30       97.41
          4 |         26        0.26       97.67
          9 |        233        2.33      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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