Frequencies for first 10,000 rows of refin variable in namcs2014 dataset :

   Do you see any |
patients referred |
        to you by |
providers outside |
of your office or |
                g |      Freq.     Percent        Cum.
------------------+-----------------------------------
              Yes |      8,710       87.10       87.10
               No |      1,290       12.90      100.00
------------------+-----------------------------------
            Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 27 Mar 2017