Frequencies for first 10,000 rows of othimg12 variable in nhamcsopd1996 dataset :

      other |
  imaging - |
   icd-9-cm |
procedure - |
       2dgt |      Freq.     Percent        Cum.
------------+-----------------------------------
         00 |      9,912       99.12       99.12
         43 |          1        0.01       99.13
         67 |          2        0.02       99.15
         75 |          7        0.07       99.22
         86 |          1        0.01       99.23
         88 |          2        0.02       99.25
         89 |         19        0.19       99.44
         90 |          3        0.03       99.47
         91 |         40        0.40       99.87
         92 |          1        0.01       99.88
         93 |          4        0.04       99.92
         94 |          1        0.01       99.93
         95 |          1        0.01       99.94
         99 |          6        0.06      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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