Frequencies for first 10,000 rows of drinking variable in person dataset :

     police |
   reported |
    alcohol |
involvement |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      3,749       37.49       37.49
          1 |      1,011       10.11       47.60
          8 |      3,189       31.89       79.49
          9 |      2,051       20.51      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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