Frequencies for first 10,000 rows of othpr33d variable in namcs2008 dataset :

procedure 3 |
  - 3 digit |      Freq.     Percent        Cum.
------------+-----------------------------------
         -9 |      9,993       99.93       99.93
        039 |          1        0.01       99.94
        893 |          2        0.02       99.96
        937 |          1        0.01       99.97
        993 |          1        0.01       99.98
        994 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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