Frequencies for first 10,000 rows of prdiag1 variable in nhamcsed2011 dataset :

 For diagnosis |
    1, is this |
     probable, |
 questionable, |
   or ruleout? |      Freq.     Percent        Cum.
---------------+-----------------------------------
Not applicable |         38        0.38        0.38
            No |      9,875       98.75       99.13
           Yes |         87        0.87      100.00
---------------+-----------------------------------
         Total |     10,000      100.00

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