Frequencies for first 10,000 rows of genmedxm variable in nhamcsopd2003 dataset :

    general |
    medical |
       exam |      Freq.     Percent        Cum.
------------+-----------------------------------
         no |      4,782       47.82       47.82
        yes |      5,218       52.18      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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