Frequencies for first 10,000 rows of prdiag1 variable in nhamcsed2002 dataset :

   is diag1 |
  probable, |
questionabl |
      e, or |
   ruleout? |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,675       96.75       96.75
          1 |        126        1.26       98.01
          8 |        199        1.99      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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