Frequencies for first 10,000 rows of ebillrec variable in namcs2005 dataset :

       does |
   practice |
     submit |
     claims |
electronica |
       lly? |      Freq.     Percent        Cum.
------------+-----------------------------------
          1 |      8,392       83.92       83.92
          2 |      1,088       10.88       94.80
          3 |        520        5.20      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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