Frequencies for first 10,000 rows of telconr variable in namcs2012 dataset :

      During last |
   normal week of |
practice, did you |
         have any |
        telephone |
 consults with pa |      Freq.     Percent        Cum.
------------------+-----------------------------------
          Unknown |        304        3.04        3.04
               No |      4,446       44.46       47.50
              Yes |      5,250       52.50      100.00
------------------+-----------------------------------
            Total |     10,000      100.00

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