Frequencies for cna_hcc56 variable in hcccoefn dataset :

  Substance |
        Use |
  Disorder, |
      Mild, |
     Except |
Alcohol and |
   Cannabis |      Freq.     Percent        Cum.
------------+-----------------------------------
       .368 |          1      100.00      100.00
------------+-----------------------------------
      Total |          1      100.00

by Jean Roth , jroth@nber.org , 7 Feb 2019