Frequencies for first 10,000 rows of prdiag1 variable in nhamcsed2013 dataset :

 For diagnosis |
    1, is this |
     probable, |
 questionable, |
   or ruleout? |      Freq.     Percent        Cum.
---------------+-----------------------------------
Not applicable |         59        0.59        0.59
            No |      9,897       98.97       99.56
           Yes |         44        0.44      100.00
---------------+-----------------------------------
         Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 7 Nov 2016