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

  does ed have |
  computerized |
    system for |
 public health |
    reporting? |      Freq.     Percent        Cum.
---------------+-----------------------------------
         blank |        103        1.03        1.03
       unknown |      1,245       12.45       13.48
           yes |      3,985       39.85       53.33
            no |      4,667       46.67      100.00
---------------+-----------------------------------
         Total |     10,000      100.00

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