Frequencies for first 10,000 rows of physasst variable in nhamcsed2010 dataset :

  Physician |
  assistant |
       seen |      Freq.     Percent        Cum.
------------+-----------------------------------
         no |      8,892       88.92       88.92
        yes |      1,108       11.08      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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