You wanna be impressed and of the charts information. This artical. Keeping young ones in the org by telling them they gonna be abandon by family if they leave, maeby keeps numbers afloat. Or even a little 0,01 plus. But if you wanna have real increase. Do what muslims do, have lots of children. But its not only that, lots people in western world are converting to Islam.
https://westernstandardonline.com/2021/10/muslim-population-of-canada-triples-in-15-years/