Frequencies for first 10,000 rows of epubhtho variable in nhamcsopd2008 dataset :

 does opd have |
      computer |
    system for |
 public health |
    reporting? |      Freq.     Percent        Cum.
---------------+-----------------------------------
         blank |        309        3.09        3.09
       unknown |      1,494       14.94       18.03
           yes |      2,079       20.79       38.82
            no |      5,858       58.58       97.40
    turned off |        260        2.60      100.00
---------------+-----------------------------------
         Total |     10,000      100.00

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