Frequencies for first 10,000 rows of physasst variable in namcs2015 dataset :

  Physician |
  assistant |
       seen |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,495       94.95       94.95
          1 |        505        5.05      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 25 Oct 2017