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

       Does |
patient now |
      have: |
     Asthma |      Freq.     Percent        Cum.
------------+-----------------------------------
         No |      9,173       91.73       91.73
        Yes |        827        8.27      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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