Frequencies for first 10,000 rows of nocouns variable in namcs1994 dataset :

counseling/ |
education - |
       none |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      5,067       50.67       50.67
          1 |      4,933       49.33      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 28 Mar 2016