Frequencies for first 10,000 rows of enwall2 variable in sippp08putm1 dataset :

          EMP: Recipient of most |
          recent/only episode of |      Freq.     Percent        Cum.
---------------------------------+-----------------------------------
                 Not in Universe |      9,106       91.06       91.06
                  Not applicable |        822        8.22       99.28
Taking care of an elderly family |         72        0.72      100.00
---------------------------------+-----------------------------------
                           Total |     10,000      100.00

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