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

        Does your |
  practice submit |
       any claims |
   electronically |
      (electronic |
        billing)? |      Freq.     Percent        Cum.
------------------+-----------------------------------
          Unknown |        242        2.42        2.42
              Yes |      8,478       84.78       87.20
               No |      1,280       12.80      100.00
------------------+-----------------------------------
            Total |     10,000      100.00

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