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

 Compliance |
       with |
    License |
Restriction |
          s |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      7,704       77.04       77.04
          1 |        171        1.71       78.75
          2 |         30        0.30       79.05
          3 |      1,470       14.70       93.75
          9 |        625        6.25      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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