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

    License |
      State |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      1,016       10.16       10.16
          2 |        107        1.07       11.23
          4 |      1,018       10.18       21.41
          5 |        564        5.64       27.05
          6 |      6,240       62.40       89.45
          8 |        160        1.60       91.05
          9 |          5        0.05       91.10
         12 |         41        0.41       91.51
         13 |         30        0.30       91.81
         15 |          3        0.03       91.84
         16 |         12        0.12       91.96
         17 |         34        0.34       92.30
         18 |          9        0.09       92.39
         19 |         12        0.12       92.51
         20 |         10        0.10       92.61
         21 |          5        0.05       92.66
         22 |         25        0.25       92.91
         23 |          3        0.03       92.94
         24 |          2        0.02       92.96
         25 |          5        0.05       93.01
         26 |         22        0.22       93.23
         27 |         10        0.10       93.33
         28 |         29        0.29       93.62
         29 |         37        0.37       93.99
         30 |          2        0.02       94.01
         31 |          6        0.06       94.07
         32 |         53        0.53       94.60
         33 |          5        0.05       94.65
         34 |          5        0.05       94.70
         35 |         23        0.23       94.93
         36 |         22        0.22       95.15
         37 |          8        0.08       95.23
         38 |          4        0.04       95.27
         39 |         23        0.23       95.50
         40 |         29        0.29       95.79
         41 |         52        0.52       96.31
         42 |          9        0.09       96.40
         43 |          1        0.01       96.41
         44 |          3        0.03       96.44
         45 |          7        0.07       96.51
         46 |          4        0.04       96.55
         47 |         30        0.30       96.85
         48 |         62        0.62       97.47
         49 |         20        0.20       97.67
         51 |          8        0.08       97.75
         53 |         29        0.29       98.04
         55 |         10        0.10       98.14
         56 |          7        0.07       98.21
         94 |          1        0.01       98.22
         95 |          6        0.06       98.28
         96 |          8        0.08       98.36
         97 |          6        0.06       98.42
         99 |        158        1.58      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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