Frequencies for snpne_nef70_74 variable in hcccoefn dataset :

snpne_nef70 |
        _74 |      Freq.     Percent        Cum.
------------+-----------------------------------
       1.02 |          1      100.00      100.00
------------+-----------------------------------
      Total |          1      100.00

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