Frequencies for first 10,000 rows of pain_srgry_sw variable in pos2015 dataset 

   Surgical |
 Specialty: |
       Pain |
  Indicator |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,578       95.78       95.78
          N |        314        3.14       98.92
          Y |        108        1.08      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 26 Jan 2016