Frequencies for first 10,000 rows of ebillrec variable in namcs2008 dataset :

does your practice submit claims |
                 electronically? |      Freq.     Percent        Cum.
---------------------------------+-----------------------------------
                         unknown |        398        3.98        3.98
             yes, all electronic |      6,503       65.03       69.01
yes, part paper, part electronic |      2,308       23.08       92.09
                              no |        791        7.91      100.00
---------------------------------+-----------------------------------
                           Total |     10,000      100.00

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