Frequencies for first 10,000 rows of alcohol variable in natl2006 dataset :

Alcohol Use |
        RFP |
649=f_alcol |
          U |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |        227        2.27        2.27
          2 |      9,721       97.21       99.48
          9 |         52        0.52      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 22 Dec 2015