Frequencies for first 10,000 rows of copd variable in namcs2014 dataset :

       Does |
patient now |
 have: COPD |      Freq.     Percent        Cum.
------------+-----------------------------------
         No |      9,616       96.16       96.16
        Yes |        384        3.84      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 27 Mar 2017