Frequencies for first 10,000 rows of prdiag3 variable in nhamcsed2011 dataset :

 For diagnosis |
    3, is this |
     probable, |
 questionable, |
   or ruleout? |      Freq.     Percent        Cum.
---------------+-----------------------------------
Not applicable |      8,367       83.67       83.67
            No |      1,577       15.77       99.44
           Yes |         56        0.56      100.00
---------------+-----------------------------------
         Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 28 Mar 2016