Frequencies for first 10,000 rows of asthma variable in nhamcsopd2008 dataset :

       does |
patient now |
      have: |
     asthma |      Freq.     Percent        Cum.
------------+-----------------------------------
         no |      9,242       92.42       92.42
        yes |        758        7.58      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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