What was the population of Capernaum during the first century?

Charlesworth indicates the population of Capernaum duirng the life of Jesus Christ was between 600 and 1,200 habitants. See: google.com/books?id=QoIS7VApH6cC&pg=PA17&lpg=PA17&dq=population+of+capernaum&source=web&ots=bcuKAhPJHA&sig=fsEImJzLx8GH0g3BySl3PTyi8mA&hl=en&sa=X&oi=book_result&resnum=5&ct=result#PPA17,M1">http://books.google.com/books?id=QoIS7VApH6cC&pg=PA17&lpg=PA17&dq=population+of+capernaum&source=web&ots=bcuKAhPJHA&sig=fsEImJzLx8GH0g3BySl3PTyi8mA&hl=en&sa=X&oi=book_result&resnum=5&ct=result#PPA17,M1