Frequencies for first 10,000 rows of othexm12 variable in nhamcsopd1996 dataset :

 other exam |
 - icd-9-cm |
procedure - |
      2 dgt |      Freq.     Percent        Cum.
------------+-----------------------------------
         00 |      8,160       81.60       81.60
         06 |          2        0.02       81.62
         37 |          1        0.01       81.63
         41 |          1        0.01       81.64
         45 |          1        0.01       81.65
         50 |          1        0.01       81.66
         56 |          1        0.01       81.67
         64 |          1        0.01       81.68
         67 |          5        0.05       81.73
         75 |         97        0.97       82.70
         81 |          1        0.01       82.71
         85 |          5        0.05       82.76
         86 |         16        0.16       82.92
         87 |          1        0.01       82.93
         88 |         10        0.10       83.03
         89 |      1,008       10.08       93.11
         90 |        102        1.02       94.13
         91 |        380        3.80       97.93
         92 |          4        0.04       97.97
         93 |         49        0.49       98.46
         94 |          6        0.06       98.52
         95 |        108        1.08       99.60
         96 |          5        0.05       99.65
         97 |          1        0.01       99.66
         99 |         34        0.34      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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