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

    Vehicle |
     Number |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |        821        8.21        8.21
          1 |      6,292       62.92       71.13
          2 |      2,432       24.32       95.45
          3 |        308        3.08       98.53
          4 |         73        0.73       99.26
          5 |         24        0.24       99.50
          6 |         13        0.13       99.63
          7 |          6        0.06       99.69
          8 |          2        0.02       99.71
          9 |          3        0.03       99.74
         10 |          2        0.02       99.76
         11 |          2        0.02       99.78
         12 |          2        0.02       99.80
         13 |          2        0.02       99.82
         14 |          1        0.01       99.83
         15 |          1        0.01       99.84
         16 |          2        0.02       99.86
         17 |          1        0.01       99.87
         18 |          1        0.01       99.88
         19 |          1        0.01       99.89
         20 |          2        0.02       99.91
         21 |          3        0.03       99.94
         22 |          2        0.02       99.96
         23 |          2        0.02       99.98
         24 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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