Frequencies for first 10,000 rows of proc32d variable in nhamcsed1993 dataset :

      other |
  procedure |
     #3 - 2 |
      digit |      Freq.     Percent        Cum.
------------+-----------------------------------
         00 |      9,993       99.93       99.93
         34 |          1        0.01       99.94
         38 |          1        0.01       99.95
         75 |          1        0.01       99.96
         89 |          2        0.02       99.98
         91 |          1        0.01       99.99
         99 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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