According to the estimates for 2007 of the Jewish People Policy Planning Institute, the world population of Jews is 13.2 million. Adherents.com cites figures ranging from 12 to 18 million Jews. These statistics incorporate both practicing Jews affiliated with synagogues and the Jewish community, and approximately 4.5 million unaffiliated and secular Jews. In 2007, 41% of the world's Jews were living in Israel.