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

    Orders for Rx or lab tests sent by: |
                         other - edited |      Freq.     Percent        Cum.
----------------------------------------+-----------------------------------
Not applicable (Not submitted electroni |      3,067       30.67       30.67
                      Box is not marked |      4,038       40.38       71.05
                          Box is marked |      2,895       28.95      100.00
----------------------------------------+-----------------------------------
                                  Total |     10,000      100.00

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