Frequencies for first 10,000 rows of prdiag1 variable in namcs2002 dataset :

      Is DIAG1 |
     probable, |
 questionable, |
   or ruleout? |      Freq.     Percent        Cum.
---------------+-----------------------------------
            No |      9,662       96.62       96.62
           Yes |        144        1.44       98.06
Not applicable |        194        1.94      100.00
---------------+-----------------------------------
         Total |     10,000      100.00

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