Frequencies for first 10,000 rows of epnotese variable in nhamcsed2007 dataset :

  does ed have |
  computerized |
    system for |
      clinical |
        notes? |      Freq.     Percent        Cum.
---------------+-----------------------------------
         blank |        103        1.03        1.03
       unknown |        213        2.13        3.16
           yes |      6,149       61.49       64.65
            no |      3,535       35.35      100.00
---------------+-----------------------------------
         Total |     10,000      100.00

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