Frequencies for first 10,000 rows of dr_cf4 variable in vehicle dataset :

    RELATED |
   FACTOR 4 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,086       90.86       90.86
          1 |          2        0.02       90.88
          3 |          2        0.02       90.90
         11 |          1        0.01       90.91
         17 |         26        0.26       91.17
         21 |          1        0.01       91.18
         23 |          1        0.01       91.19
         24 |         15        0.15       91.34
         27 |          1        0.01       91.35
         28 |         20        0.20       91.55
         29 |          1        0.01       91.56
         33 |          1        0.01       91.57
         34 |          1        0.01       91.58
         35 |          4        0.04       91.62
         36 |         17        0.17       91.79
         37 |          5        0.05       91.84
         38 |          2        0.02       91.86
         39 |         10        0.10       91.96
         44 |         53        0.53       92.49
         45 |          2        0.02       92.51
         46 |          9        0.09       92.60
         48 |         79        0.79       93.39
         51 |         21        0.21       93.60
         52 |         12        0.12       93.72
         53 |         10        0.10       93.82
         57 |         20        0.20       94.02
         58 |        109        1.09       95.11
         61 |          4        0.04       95.15
         63 |          2        0.02       95.17
         65 |          1        0.01       95.18
         66 |          1        0.01       95.19
         69 |          1        0.01       95.20
         73 |          1        0.01       95.21
         76 |          1        0.01       95.22
         79 |          1        0.01       95.23
         80 |         13        0.13       95.36
         82 |          1        0.01       95.37
         84 |         21        0.21       95.58
         85 |          3        0.03       95.61
         86 |          1        0.01       95.62
         87 |         21        0.21       95.83
         88 |          1        0.01       95.84
         90 |         18        0.18       96.02
         91 |        146        1.46       97.48
         92 |         10        0.10       97.58
         93 |         10        0.10       97.68
         94 |          1        0.01       97.69
         99 |        231        2.31      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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