Frequencies for first 10,000 rows of physasst variable in nhamcsed2005 dataset :

  physician |
  assistant |
       seen |      Freq.     Percent        Cum.
------------+-----------------------------------
         no |      9,283       92.83       92.83
        yes |        717        7.17      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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