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

     driver |
    license |
      state |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |         69        0.69        0.69
          1 |        973        9.73       10.42
          2 |         64        0.64       11.06
          4 |      1,003       10.03       21.09
          5 |        553        5.53       26.62
          6 |      3,935       39.35       65.97
          8 |        519        5.19       71.16
          9 |        338        3.38       74.54
         10 |        118        1.18       75.72
         11 |         14        0.14       75.86
         12 |      1,386       13.86       89.72
         13 |         47        0.47       90.19
         15 |          4        0.04       90.23
         16 |          6        0.06       90.29
         17 |         20        0.20       90.49
         18 |          9        0.09       90.58
         19 |          3        0.03       90.61
         20 |          8        0.08       90.69
         21 |          6        0.06       90.75
         22 |          9        0.09       90.84
         23 |          4        0.04       90.88
         24 |         33        0.33       91.21
         25 |         21        0.21       91.42
         26 |         20        0.20       91.62
         27 |          7        0.07       91.69
         28 |         30        0.30       91.99
         29 |         27        0.27       92.26
         30 |          2        0.02       92.28
         31 |          8        0.08       92.36
         32 |         34        0.34       92.70
         33 |          3        0.03       92.73
         34 |          7        0.07       92.80
         35 |         25        0.25       93.05
         36 |         36        0.36       93.41
         37 |         21        0.21       93.62
         39 |         24        0.24       93.86
         40 |         19        0.19       94.05
         41 |         22        0.22       94.27
         42 |         26        0.26       94.53
         44 |          6        0.06       94.59
         45 |          8        0.08       94.67
         46 |          3        0.03       94.70
         47 |         33        0.33       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 |         34        0.34       96.54
         54 |          1        0.01       96.55
         55 |         12        0.12       96.67
         56 |          4        0.04       96.71
         95 |         16        0.16       96.87
         96 |         11        0.11       96.98
         97 |         24        0.24       97.22
         99 |        278        2.78      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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