Multiplying mussulmen

A website dedicated to “educating” us about how nice it is to be a Mussulman and how we should all want to be one, states:

“If the west's population is top-heavy, (i.e., the ratio of youth to elderly is low) that of Muslim populations is the opposite. For example, today more than half the population of Algeria is under the age of twenty and this situation is similar elsewhere. These young populations will reproduce and perpetuate the increase of Muslims on a percentage basis well into the next millennium.”