Frequencies for first 10,000 rows of physasst variable in nhamcsed2008 dataset :

  physician |
  assistant |
       seen |      Freq.     Percent        Cum.
------------+-----------------------------------
         no |      9,055       90.55       90.55
        yes |        945        9.45      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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