Frequencies for first 10,000 rows of senbefor variable in namcs2007 dataset :

   have you or anyone in |
   practice seen patient |
                 before? |      Freq.     Percent        Cum.
-------------------------+-----------------------------------
yes, established patient |      9,010       90.10       90.10
         no, new patient |        990        9.90      100.00
-------------------------+-----------------------------------
                   Total |     10,000      100.00

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