Frequencies for first 10,000 rows of ehrwho6r variable in namcs2010 dataset :

    orders for rx or lab |
          tests not sent |
 electronically - edited |      Freq.     Percent        Cum.
-------------------------+-----------------------------------
n/a based on ectoe/ecpoe |         82        0.82        0.82
       box is not marked |      6,516       65.16       65.98
           box is marked |      3,402       34.02      100.00
-------------------------+-----------------------------------
                   Total |     10,000      100.00

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