Frequencies for first 10,000 rows of prdiag1 variable in nhamcsed2012 dataset :

 For diagnosis |
    1, is this |
     probable, |
 questionable, |
   or ruleout? |      Freq.     Percent        Cum.
---------------+-----------------------------------
Not applicable |         85        0.85        0.85
            No |      9,868       98.68       99.53
           Yes |         47        0.47      100.00
---------------+-----------------------------------
         Total |     10,000      100.00

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