Frequencies for first 10,000 rows of prdiag2 variable in namcs2005 dataset :

for dx2, is |
       this |
  probable, |
questionabl |
      e, or |
   ruleout? |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      4,989       49.89       49.89
          1 |         88        0.88       50.77
          8 |      4,923       49.23      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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