Frequencies for first 10,000 rows of ebillany variable in namcs2013 dataset :

        Does your |
  practice submit |
       any claims |
   electronically |
      (electronic |
        billing)? |      Freq.     Percent        Cum.
------------------+-----------------------------------
          Unknown |        235        2.35        2.35
Refused to answer |          1        0.01        2.36
              Yes |      8,831       88.31       90.67
               No |        933        9.33      100.00
------------------+-----------------------------------
            Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 27 Mar 2017