Frequencies for first 10,000 rows of othpr33d variable in nhamcsopd2007 dataset :

procedure 3 |
  - 3 digit |      Freq.     Percent        Cum.
------------+-----------------------------------
         -9 |      9,954       99.54       99.54
        039 |          2        0.02       99.56
        063 |          1        0.01       99.57
        139 |          1        0.01       99.58
        145 |          1        0.01       99.59
        237 |          1        0.01       99.60
        286 |          1        0.01       99.61
        454 |          1        0.01       99.62
        530 |          1        0.01       99.63
        534 |          1        0.01       99.64
        852 |          1        0.01       99.65
        862 |          2        0.02       99.67
        891 |          1        0.01       99.68
        893 |          4        0.04       99.72
        895 |         11        0.11       99.83
        931 |          2        0.02       99.85
        932 |          1        0.01       99.86
        933 |          2        0.02       99.88
        938 |          2        0.02       99.90
        978 |          1        0.01       99.91
        992 |          7        0.07       99.98
        999 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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