Frequencies for first 10,000 rows of menstat variable in nhamcsed2002 dataset :

     mental |
     status |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      8,544       85.44       85.44
          1 |      1,456       14.56      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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