How many slaves per year was being brought to colonial ports in the 1750s?

In the 1750s, an estimated 30,000 to 50,000 enslaved Africans were brought to colonial ports in North America annually. The transatlantic slave trade was a significant aspect of the economy, with major ports like Charleston, New Orleans, and Newport facilitating the importation of enslaved individuals to meet labor demands, particularly in the agricultural sectors. This influx contributed to the growth of the enslaved population in the colonies, which was crucial for the development of plantation economies.