Frequencies for first 10,000 rows of prdiag2 variable in nhamcsed2014 dataset :

 For diagnosis |
    2, is this |
     probable, |
 questionable, |
   or ruleout? |      Freq.     Percent        Cum.
---------------+-----------------------------------
Not applicable |      4,892       48.92       48.92
            No |      5,022       50.22       99.14
           Yes |         86        0.86      100.00
---------------+-----------------------------------
         Total |     10,000      100.00

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