Highland Park's native-born and earlier-immigrant populations are visibly aging.
The birth rate, calculated as the number of births per 1,000 people in a given group, is one measure of how the native-born population grows.
In 20 nations, the native-born population has begun to shrink.
In the general population the proportion of persons with a bachelor's degree or higher was the same among the foreign-born and native-born population (27.2%).
He said the separation would "delay, if not prevent altogether, their mainstreaming with the native-born population."
The 1990 census found that across the nation 3.3 percent of the native-born population and 4.4 percent of the foreign-born were receiving welfare.
If these birthrates continue to hold, then the only way these nations can survive is by replacing their native-born populations through immigration.
The native-born population are Arabic-speaking Gulf Arabs who are part of a clan-based society.
Child payments were intended to increase the birth rate, which remains too low to sustain the native-born population.
Both the native-born white and the native-born black populations are shrinking.