Frequencies for first 10,000 rows of othpr42d variable in nhamcsopd2007 dataset :

procedure 4 |
  - 2 digit |      Freq.     Percent        Cum.
------------+-----------------------------------
         -9 |      9,992       99.92       99.92
         03 |          1        0.01       99.93
         06 |          1        0.01       99.94
         85 |          1        0.01       99.95
         86 |          1        0.01       99.96
         93 |          1        0.01       99.97
         95 |          2        0.02       99.99
         97 |          1        0.01      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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