Frequencies for first 10,000 rows of emedrec variable in namcs2004 dataset :

       does |
   practice |
        use |
 electronic |
    medical |
   records? |      Freq.     Percent        Cum.
------------+-----------------------------------
        Yes |      1,894       18.94       18.94
         No |      8,046       80.46       99.40
 Don`t know |         60        0.60      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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