Frequencies for first 10,000 rows of edemog variable in namcs2011 dataset :

          Does practice have |
     computerized system for |
   recording patient history |
                 and demogra |      Freq.     Percent        Cum.
-----------------------------+-----------------------------------
                         Yes |      7,793       77.93       77.93
                          No |      2,108       21.08       99.01
Yes, but turned off/not used |         99        0.99      100.00
-----------------------------+-----------------------------------
                       Total |     10,000      100.00

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