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

  Method of |
    alcohol |
determinati |
      on by |
     police |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        433        4.33        4.33
          2 |         30        0.30        4.63
          3 |        193        1.93        6.56
          4 |         43        0.43        6.99
          5 |        913        9.13       16.12
          8 |        135        1.35       17.47
          9 |      8,253       82.53      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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