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

  VEHICLE # |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        631        6.31        6.31
          1 |      6,248       62.48       68.79
          2 |      2,502       25.02       93.81
          3 |        440        4.40       98.21
          4 |        117        1.17       99.38
          5 |         38        0.38       99.76
          6 |         14        0.14       99.90
          7 |          7        0.07       99.97
          8 |          3        0.03      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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