Frequencies for first 10,000 rows of epnotese variable in nhamcsed2008 dataset :

  does ed have |
  computerized |
    system for |
      clinical |
        notes? |      Freq.     Percent        Cum.
---------------+-----------------------------------
         blank |         70        0.70        0.70
       unknown |        383        3.83        4.53
           yes |      7,434       74.34       78.87
            no |      1,994       19.94       98.81
    turned off |        119        1.19      100.00
---------------+-----------------------------------
         Total |     10,000      100.00

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