Frequencies for first 10,000 rows of prdiag1 variable in namcs2001 dataset :

   is diag1 |
  probable, |
questionabl |
      e, or |
   ruleout? |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,566       95.66       95.66
          1 |         99        0.99       96.65
          8 |        335        3.35      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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