Frequencies for first 10,000 rows of veh_cf2 variable in vehicle dataset :

    Vehicle |
    Related |
   Factor 2 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,152       91.52       91.52
          1 |         19        0.19       91.71
          2 |         24        0.24       91.95
          3 |          8        0.08       92.03
          4 |          3        0.03       92.06
          5 |          2        0.02       92.08
          6 |          1        0.01       92.09
          7 |          2        0.02       92.11
          8 |          2        0.02       92.13
          9 |          3        0.03       92.16
         11 |          2        0.02       92.18
         14 |          6        0.06       92.24
         15 |          1        0.01       92.25
         16 |          3        0.03       92.28
         18 |         10        0.10       92.38
         31 |          9        0.09       92.47
         33 |          1        0.01       92.48
         99 |        752        7.52      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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