Just look at out marriage rates, that is the best way to show integration in most nations when the population you are talking about is a real immigrant community. Afro-Caribbeans men marry out at about 50%, women about 30%. With Africans it is lower, however Africans (not including Somalis) are wealthier and less crime prone because they come to the country or did come with more education than Afro-Caribbeans (who like Pakistanis) came as cheap labor. Judging by the states the from England and Wales Statistic office, which can be found on line, the "black" population (especially Afro-Caribbean) will disappear in the next 3 generations. The Muslim one will not.