Frequencies for first 10,000 rows of ebillany variable in namcs2011 dataset :

  Does your |
   practice |
 submit any |
     claims |
electronica |
        lly |
(electronic |
  billing)? |      Freq.     Percent        Cum.
------------+-----------------------------------
    Unknown |         88        0.88        0.88
        Yes |      8,622       86.22       87.10
         No |      1,290       12.90      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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