Frequencies for first 10,000 rows of alchl_drug_srvc_cd variable in pos2013 dat

  Services: |
    Alcohol |
and/or Drug |
       Code |      Freq.     Percent        Cum.
------------+-----------------------------------
          . |      8,601       86.01       86.01
          0 |      1,149       11.49       97.50
          1 |        169        1.69       99.19
          2 |         44        0.44       99.63
          3 |         37        0.37      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 26 Jan 2016