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

    alcohol |
      test- |
     status |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      5,327       53.27       53.27
          1 |          2        0.02       53.29
          2 |      4,243       42.43       95.72
          8 |        411        4.11       99.83
          9 |         17        0.17      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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