Frequencies for nemcaid variable in person dataset :

    nemcaid |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |         16       66.67       66.67
          1 |          8       33.33      100.00
------------+-----------------------------------
      Total |         24      100.00

by Jean Roth , jroth@nber.org , 2 May 2016