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

   Does your practice have a |
     computerized system for |
    providing standard order |
                       sets  |      Freq.     Percent        Cum.
-----------------------------+-----------------------------------
                     Unknown |        692        6.92        6.92
                         Yes |      3,995       39.95       46.87
                          No |      4,788       47.88       94.75
Yes, but turned off/not used |        525        5.25      100.00
-----------------------------+-----------------------------------
                       Total |     10,000      100.00

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