Frequencies for first 10,000 rows of psychoth variable in nhamcsopd2011 dataset :

Psychothera |
         py |      Freq.     Percent        Cum.
------------+-----------------------------------
         No |      9,255       92.55       92.55
        Yes |        745        7.45      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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