Frequencies for first 10,000 rows of eordere variable in nhamcsed2006 dataset :

   if yes, are |
   orders sent |
electronically |
             ? |      Freq.     Percent        Cum.
---------------+-----------------------------------
           yes |      3,799       37.99       37.99
            no |        216        2.16       40.15
       unknown |        289        2.89       43.04
not applicable |      5,176       51.76       94.80
         blank |        520        5.20      100.00
---------------+-----------------------------------
         Total |     10,000      100.00

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