Frequencies for first 10,000 rows of othexm12 variable in namcs1996 dataset :

 other exam |
 - icd-9-cm |
procedure - |
      2 dgt |      Freq.     Percent        Cum.
------------+-----------------------------------
         00 |      7,496       74.96       74.96
         04 |          1        0.01       74.97
         09 |          2        0.02       74.99
         10 |          1        0.01       75.00
         25 |          2        0.02       75.02
         27 |          2        0.02       75.04
         37 |          4        0.04       75.08
         41 |          1        0.01       75.09
         45 |          2        0.02       75.11
         57 |          1        0.01       75.12
         60 |          5        0.05       75.17
         67 |          1        0.01       75.18
         68 |          2        0.02       75.20
         69 |          1        0.01       75.21
         75 |         19        0.19       75.40
         83 |          1        0.01       75.41
         85 |          1        0.01       75.42
         86 |         53        0.53       75.95
         87 |          1        0.01       75.96
         88 |          9        0.09       76.05
         89 |      1,831       18.31       94.36
         90 |        133        1.33       95.69
         91 |        205        2.05       97.74
         92 |         11        0.11       97.85
         93 |         26        0.26       98.11
         94 |          1        0.01       98.12
         95 |        165        1.65       99.77
         99 |         23        0.23      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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