Frequencies for first 10,000 rows of asthma variable in nhamcsopd2011 dataset :

       Does |
patient now |
     have - |
     Asthma |      Freq.     Percent        Cum.
------------+-----------------------------------
         No |      8,972       89.72       89.72
        Yes |      1,028       10.28      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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