Frequencies for chroniclungdisorders variable in snp2013 dataset :

    Chronic |
       Lung |
  Disorders |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,251       77.86       77.86
          * |      2,631       22.14      100.00
------------+-----------------------------------
      Total |     11,882      100.00

by Jean Roth , jroth@nber.org , 14 Apr 2016