Frequencies for first 10,000 rows of emedrec variable in namcs2007 dataset :

          does your practice use |
     electronic medical records? |      Freq.     Percent        Cum.
---------------------------------+-----------------------------------
                         unknown |         19        0.19        0.19
             yes, all electronic |      2,012       20.12       20.31
yes, part paper, part electronic |      1,286       12.86       33.17
                              no |      6,683       66.83      100.00
---------------------------------+-----------------------------------
                           Total |     10,000      100.00

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