Frequencies for first 10,000 rows of othimg13 variable in namcs1995 dataset :

      other |
  imaging - |
   icd-9-cm |
procedure - |
       3dgt |      Freq.     Percent        Cum.
------------+-----------------------------------
        000 |      9,934       99.34       99.34
        889 |          2        0.02       99.36
        893 |          9        0.09       99.45
        894 |          4        0.04       99.49
        895 |         19        0.19       99.68
        896 |          2        0.02       99.70
        909 |          8        0.08       99.78
        914 |         14        0.14       99.92
        916 |          1        0.01       99.93
        919 |          1        0.01       99.94
        930 |          2        0.02       99.96
        954 |          1        0.01       99.97
        965 |          1        0.01       99.98
        999 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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