Frequencies for first 10,000 rows of therpr22 variable in namcs1998 dataset :

      other |
  ther/prev |
 service #2 |
    - 2 dgt |      Freq.     Percent        Cum.
------------+-----------------------------------
         00 |      9,985       99.85       99.85
         53 |          1        0.01       99.86
         59 |          1        0.01       99.87
         89 |          4        0.04       99.91
         93 |          5        0.05       99.96
         94 |          3        0.03       99.99
         96 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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