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

     Driver |
    Related |
   Factor 3 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,660       76.60       76.60
          1 |         57        0.57       77.17
          2 |          5        0.05       77.22
          3 |         10        0.10       77.32
          4 |          6        0.06       77.38
          5 |         46        0.46       77.84
          6 |        262        2.62       80.46
          8 |          1        0.01       80.47
         10 |          1        0.01       80.48
         11 |         12        0.12       80.60
         21 |         12        0.12       80.72
         22 |          2        0.02       80.74
         23 |         11        0.11       80.85
         24 |         82        0.82       81.67
         26 |          5        0.05       81.72
         27 |         31        0.31       82.03
         28 |        478        4.78       86.81
         29 |         13        0.13       86.94
         30 |         14        0.14       87.08
         31 |          1        0.01       87.09
         33 |         10        0.10       87.19
         34 |          6        0.06       87.25
         35 |         17        0.17       87.42
         36 |        119        1.19       88.61
         37 |         16        0.16       88.77
         38 |         30        0.30       89.07
         39 |         43        0.43       89.50
         40 |          4        0.04       89.54
         41 |         16        0.16       89.70
         42 |          4        0.04       89.74
         44 |        288        2.88       92.62
         45 |          3        0.03       92.65
         48 |         90        0.90       93.55
         51 |         12        0.12       93.67
         52 |         26        0.26       93.93
         53 |         34        0.34       94.27
         54 |          6        0.06       94.33
         55 |          4        0.04       94.37
         56 |          6        0.06       94.43
         57 |         23        0.23       94.66
         58 |        139        1.39       96.05
         61 |         18        0.18       96.23
         62 |          6        0.06       96.29
         63 |         22        0.22       96.51
         64 |          4        0.04       96.55
         65 |          6        0.06       96.61
         66 |         13        0.13       96.74
         67 |          6        0.06       96.80
         69 |          1        0.01       96.81
         71 |          1        0.01       96.82
         75 |          1        0.01       96.83
         76 |          3        0.03       96.86
         77 |          5        0.05       96.91
         79 |         33        0.33       97.24
         80 |          9        0.09       97.33
         81 |          1        0.01       97.34
         82 |          4        0.04       97.38
         83 |          2        0.02       97.40
         84 |         35        0.35       97.75
         85 |          1        0.01       97.76
         86 |          1        0.01       97.77
         87 |          6        0.06       97.83
         90 |         52        0.52       98.35
         99 |        165        1.65      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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