Frequencies for first 10,000 rows of digsc12d variable in namcs2005 dataset :

 diagnostic |
 service #1 |
  - 2 digit |      Freq.     Percent        Cum.
------------+-----------------------------------
         00 |      8,589       85.89       85.89
         04 |          1        0.01       85.90
         37 |          2        0.02       85.92
         41 |          1        0.01       85.93
         57 |          1        0.01       85.94
         75 |          2        0.02       85.96
         81 |          2        0.02       85.98
         83 |          1        0.01       85.99
         85 |          1        0.01       86.00
         86 |         65        0.65       86.65
         87 |          1        0.01       86.66
         88 |         12        0.12       86.78
         89 |        819        8.19       94.97
         90 |        239        2.39       97.36
         91 |         73        0.73       98.09
         92 |          5        0.05       98.14
         93 |         25        0.25       98.39
         94 |          5        0.05       98.44
         95 |         90        0.90       99.34
         96 |          4        0.04       99.38
         97 |          3        0.03       99.41
         99 |         59        0.59      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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