Frequencies for first 10,000 rows of eno6all4 variable in sippp08putm1 dataset :

   EMP: Reason never |
         worked at a |
        long-term pd |      Freq.     Percent        Cum.
---------------------+-----------------------------------
     Not in Universe |      9,513       95.13       95.13
      Not applicable |        418        4.18       99.31
Other family or home |         69        0.69      100.00
---------------------+-----------------------------------
               Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 3 Jan 2016