Frequencies for first 10,000 rows of prdiag2 variable in nhamcsed2015 dataset :

 For diagnosis |
    2, is this |
     probable, |
 questionable, |
   or ruleout? |      Freq.     Percent        Cum.
---------------+-----------------------------------
Not applicable |      5,294       52.94       52.94
            No |      4,638       46.38       99.32
           Yes |         68        0.68      100.00
---------------+-----------------------------------
         Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 20 Nov 2017