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

    alcohol |
      test- |
     status |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      5,366       53.66       53.66
          1 |          2        0.02       53.68
          2 |      4,506       45.06       98.74
          8 |          5        0.05       98.79
          9 |        121        1.21      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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