Between 1525 and 1866, 12.5 million Africans were kidnaped and sold into slavery in the Americas.
The most comprehensive analysis of shipping records for the slave trade is the Trans-Atlantic Slave Trade Database, edited by professors David Eltis and David Richardson. (the editors are careful to say that all of their figures are estimates) Between 1525 and 1866, in the entire history of the slave trade to the New World, according to the Trans-Atlantic Slave Trade Database, 12.5 million Africans were shipped to the New World. 10.7 million survived the dreaded Middle Passage, disembarking in North America, the Caribbean, and South America.
And how many of these 10.7 million Africans were shipped directly to North America? Only about 388,000. That's right: a tiny percentage.