Frequencies for first 10,000 rows of digsc22d variable in nhamcsopd2007 dataset :

 diagnostic |
 service #2 |
  - 2 digit |      Freq.     Percent        Cum.
------------+-----------------------------------
         -9 |      9,701       97.01       97.01
         12 |          1        0.01       97.02
         23 |          2        0.02       97.04
         57 |          1        0.01       97.05
         75 |         26        0.26       97.31
         86 |          3        0.03       97.34
         87 |          2        0.02       97.36
         88 |          4        0.04       97.40
         89 |         92        0.92       98.32
         90 |          9        0.09       98.41
         91 |         18        0.18       98.59
         92 |          1        0.01       98.60
         93 |         17        0.17       98.77
         94 |          3        0.03       98.80
         95 |        106        1.06       99.86
         96 |          1        0.01       99.87
         99 |         13        0.13      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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