That depends on the size of the synagogue and congregation.
An estimated 13.2 Million people worldwide
Of the four principal members, three were born in Sweden. One, Anni-Frid Lyngstad was born in Norway but moved to Sweden when she was one year old.
The first Pope Peter was a Jew. John Paul II is also a possible Jew as his lineage points through his mother.
Unknown, the Academy does not publish a list of its members. There are approximately 6,000 members, but it changes from year to year.