Frequencies for l_restri variable in vehnit dataset :

 COMPLIANCE |
      W/LIC |
RESTRICTION |
          S |      Freq.     Percent        Cum.
------------+-----------------------------------
          . |      1,116      100.00      100.00
------------+-----------------------------------
      Total |      1,116      100.00

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