Frequencies for first 10,000 rows of prdiag2 variable in namcs2004 dataset :

   is diag2 |
  probable, |
questionabl |
      e, or |
   ruleout? |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      4,983       49.83       49.83
          1 |        106        1.06       50.89
          8 |      4,911       49.11      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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