What is the Main Development Region (MDR) of the North Atlantic Ocean?

What is the Main Development Region (MDR) of the North Atlantic Ocean?

A common frequently asked hurricane question is, ‘What is the Main Development region?’ Well, there is not a scientific standard for the MDR, but many meteorologists consider it to be the region between Africa and the Lesser Antilles, where the majority of tropical cyclones form. Climatologists estimate that 85% of major hurricanes and 60% of all other tropical cyclones form in either the Caribbean or the Atlantic MDR.