Frequencies for first 10,000 rows of therpr12 variable in namcs1999 dataset :

      other |
  ther/prev |
 service #1 |
    - 2 dgt |      Freq.     Percent        Cum.
------------+-----------------------------------
         00 |      9,702       97.02       97.02
         03 |          5        0.05       97.07
         08 |          1        0.01       97.08
         16 |          1        0.01       97.09
         18 |          1        0.01       97.10
         20 |          1        0.01       97.11
         33 |          1        0.01       97.12
         37 |          2        0.02       97.14
         38 |          2        0.02       97.16
         39 |          2        0.02       97.18
         45 |          5        0.05       97.23
         48 |          1        0.01       97.24
         59 |          1        0.01       97.25
         62 |          1        0.01       97.26
         68 |          1        0.01       97.27
         79 |          1        0.01       97.28
         80 |          1        0.01       97.29
         85 |          5        0.05       97.34
         86 |         12        0.12       97.46
         88 |          1        0.01       97.47
         89 |         41        0.41       97.88
         90 |          1        0.01       97.89
         91 |          1        0.01       97.90
         93 |         35        0.35       98.25
         94 |        115        1.15       99.40
         95 |         25        0.25       99.65
         96 |         10        0.10       99.75
         97 |          7        0.07       99.82
         98 |          2        0.02       99.84
         99 |         16        0.16      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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