Frequencies for first 10,000 rows of prdiag4 variable in nhamcsed2014 dataset :

 For diagnosis |
    4, is this |
     probable, |
 questionable, |
   or ruleout? |      Freq.     Percent        Cum.
---------------+-----------------------------------
Not applicable |      8,604       86.04       86.04
            No |      1,375       13.75       99.79
           Yes |         21        0.21      100.00
---------------+-----------------------------------
         Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 11 Apr 2017