Frequencies for first 10,000 rows of alchl_drug_srvc_cd variable in pos2018 dataset :

  Services: |
    Alcohol |
and/or Drug |
       Code |      Freq.     Percent        Cum.
------------+-----------------------------------
          . |      8,560       85.60       85.60
          0 |      1,177       11.77       97.37
          1 |        171        1.71       99.08
          2 |         38        0.38       99.46
          3 |         54        0.54      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 15 Feb 2019