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

    License |
      State |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,290       12.90       12.90
          2 |        140        1.40       14.30
          4 |        924        9.24       23.54
          5 |        655        6.55       30.09
          6 |      5,919       59.19       89.28
          8 |         15        0.15       89.43
          9 |          5        0.05       89.48
         10 |          1        0.01       89.49
         12 |         41        0.41       89.90
         13 |         51        0.51       90.41
         15 |          2        0.02       90.43
         16 |          9        0.09       90.52
         17 |         21        0.21       90.73
         18 |         14        0.14       90.87
         19 |          5        0.05       90.92
         20 |          7        0.07       90.99
         21 |          8        0.08       91.07
         22 |         25        0.25       91.32
         24 |          3        0.03       91.35
         25 |          2        0.02       91.37
         26 |         18        0.18       91.55
         27 |          9        0.09       91.64
         28 |         25        0.25       91.89
         29 |         31        0.31       92.20
         30 |          4        0.04       92.24
         31 |          5        0.05       92.29
         32 |         44        0.44       92.73
         33 |          2        0.02       92.75
         34 |          2        0.02       92.77
         35 |         16        0.16       92.93
         36 |         16        0.16       93.09
         37 |         13        0.13       93.22
         38 |          1        0.01       93.23
         39 |         20        0.20       93.43
         40 |         24        0.24       93.67
         41 |         33        0.33       94.00
         42 |          8        0.08       94.08
         45 |          3        0.03       94.11
         46 |          5        0.05       94.16
         47 |         35        0.35       94.51
         48 |         66        0.66       95.17
         49 |         14        0.14       95.31
         51 |          7        0.07       95.38
         53 |         33        0.33       95.71
         54 |          2        0.02       95.73
         55 |          8        0.08       95.81
         56 |          3        0.03       95.84
         94 |          2        0.02       95.86
         95 |          7        0.07       95.93
         96 |         22        0.22       96.15
         97 |         17        0.17       96.32
         99 |        368        3.68      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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