Frequencies for first 10,000 rows of therpr12 variable in namcs2000 dataset :

      other |
  ther/prev |
 service #1 |
    - 2 dgt |      Freq.     Percent        Cum.
------------+-----------------------------------
         00 |      9,660       96.60       96.60
         06 |          1        0.01       96.61
         21 |          1        0.01       96.62
         45 |          5        0.05       96.67
         48 |          2        0.02       96.69
         49 |          1        0.01       96.70
         53 |          1        0.01       96.71
         75 |          1        0.01       96.72
         85 |          2        0.02       96.74
         86 |         11        0.11       96.85
         89 |         17        0.17       97.02
         90 |          1        0.01       97.03
         92 |          2        0.02       97.05
         93 |         52        0.52       97.57
         94 |        222        2.22       99.79
         95 |          2        0.02       99.81
         96 |          8        0.08       99.89
         97 |          1        0.01       99.90
         99 |         10        0.10      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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