Frequencies for first 10,000 rows of ebillrec variable in namcs2006 dataset :

       does |
   practice |
     submit |
     claims |
electronica |
       lly? |      Freq.     Percent        Cum.
------------+-----------------------------------
      blank |         61        0.61        0.61
        yes |      8,148       81.48       82.09
         no |      1,641       16.41       98.50
 don`t know |        150        1.50      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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