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

    alcohol |
      test- |
     status |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      5,263       52.63       52.63
          1 |          3        0.03       52.66
          2 |      3,673       36.73       89.39
          8 |        978        9.78       99.17
          9 |         83        0.83      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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