Frequencies for first 10,000 rows of tow_veh variable in person dataset :

    Vehicle |
 Trailering |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,594       85.94       85.94
          1 |        469        4.69       90.63
          5 |         47        0.47       91.10
          9 |         38        0.38       91.48
          . |        852        8.52      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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