Frequencies for first 10,000 rows of medasst variable in nhamcsopd1995 dataset :

    medical |
  assistant |
       seen |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,225       92.25       92.25
          1 |        775        7.75      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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