Frequencies for first 10,000 rows of therpr12 variable in nhamcsopd1997 dataset :

      other |
  ther/prev |
 service #1 |
    - 2 dgt |      Freq.     Percent        Cum.
------------+-----------------------------------
         00 |      8,657       86.57       86.57
         14 |          2        0.02       86.59
         25 |          1        0.01       86.60
         28 |          1        0.01       86.61
         39 |          1        0.01       86.62
         49 |          1        0.01       86.63
         53 |          1        0.01       86.64
         54 |          1        0.01       86.65
         57 |          2        0.02       86.67
         62 |          1        0.01       86.68
         69 |          2        0.02       86.70
         71 |          1        0.01       86.71
         73 |          1        0.01       86.72
         86 |          6        0.06       86.78
         89 |         14        0.14       86.92
         92 |          9        0.09       87.01
         93 |         28        0.28       87.29
         94 |      1,201       12.01       99.30
         95 |         16        0.16       99.46
         96 |         12        0.12       99.58
         97 |          5        0.05       99.63
         99 |         37        0.37      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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