Frequencies for first 10,000 rows of othpr33d variable in namcs2007 dataset :

procedure 3 |
  - 3 digit |      Freq.     Percent        Cum.
------------+-----------------------------------
         -9 |      9,981       99.81       99.81
        863 |          3        0.03       99.84
        891 |          2        0.02       99.86
        893 |          8        0.08       99.94
        950 |          1        0.01       99.95
        992 |          1        0.01       99.96
        994 |          2        0.02       99.98
        999 |          2        0.02      100.00
------------+-----------------------------------
      Total |     10,000      100.00

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