Your statement about low reported crimes in islamic countries is quite right.But the birth rate I think not in all islamic countries is very high.In islamic countries such as Indonesia the birth rate is low because the government has launched the birth control program more than 10 years ago.
The low crime rate in islamic countries is caused by (1)its penalty/punisment for crime in line with Qur'an and Hadith is very hard such cutting hisd/her hand for stealing so muslims will think twice for conducting a crime (2)prohibition of killi ing,gambling,stealing,insulting,cheating etc are clearly stated in the holy Qur'an that shoiuld be obeyed by muslims (3)islamic government protect the poor and the richmen pay islamic taxes regularly and properly where its fund is used for helping the poor (4 muslims have a high social responsibility
any time in togetherness for helping others.
The high birth rate in general islamic countries is caused by (1)most of muslim families are poor and low educated (2)not all islamic countries have a birth control program which is inlene with islamic teaching that controlling pregnant is not an abortion.It prevents for pregnancing,so there bis no killing fetus in the womb.(3) the poor and uneducated muslims do not know that birth control is not against with islamic religion and they can not afford for funding pills ,injection or other tool of birth control(4) they have no other entertainment before going to bed..In the western countries the birth rate is low among others caused by high abortion rate while it is very low in islamic countries.Crime rate in western countries is very high caused by low moral , low compliance to their reli
gion teaching and there are many atheists .