Frequencies for first 10,000 rows of dr_cf3 variable in vehicle dataset :

     Driver |
    Related |
   Factor 3 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,802       78.02       78.02
          1 |         35        0.35       78.37
          2 |          5        0.05       78.42
          3 |          6        0.06       78.48
          4 |          8        0.08       78.56
          5 |        140        1.40       79.96
          6 |        209        2.09       82.05
          7 |          1        0.01       82.06
         11 |          6        0.06       82.12
         12 |          4        0.04       82.16
         19 |          1        0.01       82.17
         21 |          7        0.07       82.24
         22 |          1        0.01       82.25
         23 |          7        0.07       82.32
         24 |         67        0.67       82.99
         26 |          5        0.05       83.04
         27 |         40        0.40       83.44
         28 |        276        2.76       86.20
         29 |         13        0.13       86.33
         30 |         10        0.10       86.43
         31 |          2        0.02       86.45
         33 |         15        0.15       86.60
         34 |          4        0.04       86.64
         35 |         12        0.12       86.76
         36 |         58        0.58       87.34
         37 |         14        0.14       87.48
         38 |         34        0.34       87.82
         39 |         68        0.68       88.50
         41 |          9        0.09       88.59
         42 |          1        0.01       88.60
         43 |          1        0.01       88.61
         44 |        281        2.81       91.42
         45 |          1        0.01       91.43
         46 |          1        0.01       91.44
         48 |        140        1.40       92.84
         49 |          1        0.01       92.85
         51 |         14        0.14       92.99
         52 |         17        0.17       93.16
         53 |         21        0.21       93.37
         54 |          1        0.01       93.38
         55 |         12        0.12       93.50
         56 |          2        0.02       93.52
         58 |        150        1.50       95.02
         59 |          1        0.01       95.03
         61 |         19        0.19       95.22
         62 |          7        0.07       95.29
         63 |         14        0.14       95.43
         64 |          2        0.02       95.45
         65 |          2        0.02       95.47
         66 |          2        0.02       95.49
         67 |          5        0.05       95.54
         70 |          1        0.01       95.55
         75 |          5        0.05       95.60
         76 |          2        0.02       95.62
         79 |         21        0.21       95.83
         80 |         18        0.18       96.01
         83 |          3        0.03       96.04
         84 |         30        0.30       96.34
         86 |          1        0.01       96.35
         87 |          8        0.08       96.43
         90 |         30        0.30       96.73
         91 |        201        2.01       98.74
         99 |        126        1.26      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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