question: A 2006 study by Behar et al , suggested that what percentage of the current Ashkenazi population was descended from `` founder lineages '' ?
answer: 40 %
turker_answer: In 2006 40 % of Ashkenazi population was found to be from founder lineages .
rule-based: A 2006 study by Behar et al , suggested that 40 % the current Ashkenazi population was descended from `` founder lineages '' .