A 4,000% increase in Africans in the USA (I assume,immigrants)since 1960!

A small, but rapidly growing, community of African immigrants has its own concerns about Arizona's controversial immigration law. And organizations that assist the community face their own challenges of how to educate their members about their rights.

The majority of this primarily East African community entered the United States as refugees. The total population of Africans in the United States increased 40-fold between 1960 and 2006, with most of the growth coming after 1990 (as violence grew in the region). That influx is reflected in Arizona as well — Africans now comprise about 2.6 percent of the state's foreign-born population, more than twice the percentage in 1990. (For more background on Africans in Arizona, read this series at Phxsoul.com.)
Immigration : NPR