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

     driver |
    license |
      state |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |         66        0.66        0.66
          1 |        974        9.74       10.40
          2 |         64        0.64       11.04
          4 |      1,001       10.01       21.05
          5 |        534        5.34       26.39
          6 |      3,809       38.09       64.48
          8 |        518        5.18       69.66
          9 |        324        3.24       72.90
         10 |        118        1.18       74.08
         11 |         14        0.14       74.22
         12 |      1,548       15.48       89.70
         13 |         47        0.47       90.17
         15 |          4        0.04       90.21
         16 |          6        0.06       90.27
         17 |         20        0.20       90.47
         18 |          9        0.09       90.56
         19 |          3        0.03       90.59
         20 |          8        0.08       90.67
         21 |          6        0.06       90.73
         22 |         10        0.10       90.83
         23 |          4        0.04       90.87
         24 |         33        0.33       91.20
         25 |         20        0.20       91.40
         26 |         20        0.20       91.60
         27 |          8        0.08       91.68
         28 |         31        0.31       91.99
         29 |         27        0.27       92.26
         30 |          2        0.02       92.28
         31 |          8        0.08       92.36
         32 |         33        0.33       92.69
         33 |          3        0.03       92.72
         34 |          7        0.07       92.79
         35 |         25        0.25       93.04
         36 |         38        0.38       93.42
         37 |         21        0.21       93.63
         39 |         23        0.23       93.86
         40 |         18        0.18       94.04
         41 |         22        0.22       94.26
         42 |         26        0.26       94.52
         44 |          6        0.06       94.58
         45 |          8        0.08       94.66
         46 |          3        0.03       94.69
         47 |         34        0.34       95.03
         48 |         82        0.82       95.85
         49 |         13        0.13       95.98
         50 |          2        0.02       96.00
         51 |         18        0.18       96.18
         52 |          2        0.02       96.20
         53 |         35        0.35       96.55
         54 |          2        0.02       96.57
         55 |         12        0.12       96.69
         56 |          4        0.04       96.73
         95 |         16        0.16       96.89
         96 |         11        0.11       97.00
         97 |         23        0.23       97.23
         99 |        277        2.77      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Oct 2016