Frequencies for first 10,000 rows of veh_cf1 variable in vehicle dataset :

    Vehicle |
    Related |
   Factor 1 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,055       90.55       90.55
          1 |        264        2.64       93.19
          2 |         89        0.89       94.08
          3 |         16        0.16       94.24
          4 |          7        0.07       94.31
          5 |         37        0.37       94.68
          6 |          1        0.01       94.69
          7 |         24        0.24       94.93
          8 |          9        0.09       95.02
          9 |         14        0.14       95.16
         11 |          1        0.01       95.17
         12 |          3        0.03       95.20
         13 |          3        0.03       95.23
         14 |         11        0.11       95.34
         15 |          9        0.09       95.43
         99 |        457        4.57      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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