Frequencies for first 10,000 rows of med variable in nhamcsopd2009 dataset :

   was medication |
       ordered or |
        provided? |      Freq.     Percent        Cum.
------------------+-----------------------------------
               no |      3,043       30.43       30.43
              yes |      6,764       67.64       98.07
entire item blank |        193        1.93      100.00
------------------+-----------------------------------
            Total |     10,000      100.00

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