That was only most recent. In the past Jews were highly restrictive and many times lived in their own communities.
That link is to a file on your local machine so we cannot access it.
And, you didn't answer my question...
What percent chance do you give that you are a physical descendant of Jacob?
FYI, I put MY chances of being a descendant of Jacob at over 50%.
Not because I have any history records showing the lineage. But simply by the concept that there is a 50% chance that everyone may have a common ancestor less than 3,000 years ago.