Frequencies for first 10,000 rows of esumr variable in namcs2012 dataset :

          Does practice have |
    computerized capability: |
     providing patients with |
                clinical sum |      Freq.     Percent        Cum.
-----------------------------+-----------------------------------
                     Unknown |        139        1.39        1.39
                         Yes |      5,423       54.23       55.62
                          No |      4,017       40.17       95.79
Yes, but turned off/not used |        421        4.21      100.00
-----------------------------+-----------------------------------
                       Total |     10,000      100.00

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