Frequencies for first 10,000 rows of emedrec variable in namcs2008 dataset :

          does your practice use |
     electronic medical records? |      Freq.     Percent        Cum.
---------------------------------+-----------------------------------
                         unknown |        103        1.03        1.03
             yes, all electronic |      3,233       32.33       33.36
yes, part paper, part electronic |      1,537       15.37       48.73
                              no |      5,127       51.27      100.00
---------------------------------+-----------------------------------
                           Total |     10,000      100.00

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