Complex sentence: The CIA Factbook lists 92% of the country is Catholic, but only 20% are practicing regularly or weekly at a church service., the Jewish population is about 300,000 (around 0.75% of the population).
Split into simpler sentences: The CIA Factbook lists 92% of the country is Catholic, but only 20% are practicing regularly or weekly at a church service. The Jewish population is about 300,000 (around 0.75% of the population).