Mezue ahịrịokwu na-esonụ: N'agbanyeghị atụmatụ ndị a, Project Independence enweghị ike igbochi mmụba nke mmanụ mmanụ America mgbe mmachibido iwu 1973-74 gasịrị; ịdabere na ndị na-ebubata mba ọzọ sitere na 36% ruo ihe fọrọ nke nta ka ọ bụrụ 50% na 1979, mgbe
ajụjụ banyere nchekwa ike nuklia bilitere n'ụlọ, na nsogbu ike ọzọ bilitere na mba ọzọ.