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

  does ed have |
  computerized |
    system for |
viewing of lab |
      results? |      Freq.     Percent        Cum.
---------------+-----------------------------------
         blank |         70        0.70        0.70
           yes |      9,157       91.57       92.27
            no |        773        7.73      100.00
---------------+-----------------------------------
         Total |     10,000      100.00

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