As per Steve Camarota, research director for the Center for Immigration Studies, United States is a country where the fertility rate of women increases...but there is a exception to this, the women have to be immigrants.

Yes, foreign women tend to have a boost in fertility rate, when they are in United States. If in US the average rate is 2.9 children then in their homeland it is as low as 2.3 children per women.

A strange report... but sounds helpful for the countries that are facing a constant descent in population.

Via : Washington Times