Frequencies for first 10,000 rows of med variable in nhamcsopd2008 dataset :

   was medication |
       ordered or |
        provided? |      Freq.     Percent        Cum.
------------------+-----------------------------------
               no |      2,795       27.95       27.95
              yes |      7,099       70.99       98.94
entire item blank |        106        1.06      100.00
------------------+-----------------------------------
            Total |     10,000      100.00

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