Frequencies for first 10,000 rows of med variable in nhamcsopd2010 dataset :

   was medication |
       ordered or |
        provided? |      Freq.     Percent        Cum.
------------------+-----------------------------------
               no |      2,596       25.96       25.96
              yes |      7,126       71.26       97.22
entire item blank |        278        2.78      100.00
------------------+-----------------------------------
            Total |     10,000      100.00

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