Frequencies for first 10,000 rows of dr_cf1 variable in vehicle dataset :

    RELATED |
   FACTOR 1 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      3,411       34.11       34.11
          1 |        211        2.11       36.22
          2 |         42        0.42       36.64
          3 |         15        0.15       36.79
          4 |          1        0.01       36.80
          6 |        346        3.46       40.26
          7 |          3        0.03       40.29
          9 |          1        0.01       40.30
         11 |          7        0.07       40.37
         12 |          1        0.01       40.38
         18 |          1        0.01       40.39
         19 |          1        0.01       40.40
         20 |         45        0.45       40.85
         21 |         20        0.20       41.05
         22 |          2        0.02       41.07
         23 |         18        0.18       41.25
         24 |        103        1.03       42.28
         25 |          1        0.01       42.29
         26 |         53        0.53       42.82
         27 |         67        0.67       43.49
         28 |      1,767       17.67       61.16
         29 |          8        0.08       61.24
         30 |          6        0.06       61.30
         31 |         15        0.15       61.45
         33 |         31        0.31       61.76
         34 |          9        0.09       61.85
         35 |         44        0.44       62.29
         36 |         40        0.40       62.69
         37 |         30        0.30       62.99
         38 |        602        6.02       69.01
         39 |        344        3.44       72.45
         40 |          2        0.02       72.47
         41 |          8        0.08       72.55
         42 |          2        0.02       72.57
         44 |      1,244       12.44       85.01
         45 |          1        0.01       85.02
         48 |        298        2.98       88.00
         49 |          5        0.05       88.05
         50 |          2        0.02       88.07
         51 |        144        1.44       89.51
         52 |          9        0.09       89.60
         53 |          5        0.05       89.65
         54 |         37        0.37       90.02
         55 |          1        0.01       90.03
         56 |          1        0.01       90.04
         57 |         20        0.20       90.24
         58 |         28        0.28       90.52
         61 |         46        0.46       90.98
         62 |         20        0.20       91.18
         63 |         25        0.25       91.43
         65 |          9        0.09       91.52
         66 |         51        0.51       92.03
         67 |          8        0.08       92.11
         69 |          1        0.01       92.12
         71 |          5        0.05       92.17
         75 |          1        0.01       92.18
         76 |          2        0.02       92.20
         77 |          1        0.01       92.21
         79 |         11        0.11       92.32
         80 |         21        0.21       92.53
         81 |          4        0.04       92.57
         82 |          1        0.01       92.58
         83 |          6        0.06       92.64
         84 |         43        0.43       93.07
         85 |         11        0.11       93.18
         86 |          2        0.02       93.20
         87 |         13        0.13       93.33
         90 |        245        2.45       95.78
         91 |         94        0.94       96.72
         92 |         51        0.51       97.23
         93 |          2        0.02       97.25
         97 |          1        0.01       97.26
         98 |          1        0.01       97.27
         99 |        273        2.73      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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