Frequencies for first 10,000 rows of selfcm13 variable in h84 dataset :

SELF-EMPLOY |
      ED AT |
    CURRENT |
   MAIN JOB |      Freq.     Percent        Cum.
------------+-----------------------------------
         -9 |          4        0.04        0.04
         -1 |      5,635       56.35       56.39
          1 |        495        4.95       61.34
          2 |      3,866       38.66      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 28 Feb 2018