Frequencies for first 10,000 rows of eremindo variable in nhamcsopd2009 dataset :

 does opd have |
  computerized |
    system for |
 reminders for |
interven/scree |
   ning tests? |      Freq.     Percent        Cum.
---------------+-----------------------------------
       unknown |        534        5.34        5.34
           yes |      5,332       53.32       58.66
            no |      4,134       41.34      100.00
---------------+-----------------------------------
         Total |     10,000      100.00

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