The majority of Ecuadorians live in the central provinces, the Andes mountains, or along the Pacific coast. The tropical forest region to the east of the mountains (El Oriente) remains sparsely populated and contains only about 3% of the population. Birth rate is 2-1 for each death. Marriages are usually from 14 and above using parental consent. About 12.4% of the population is married in the ages 15–19. Divorce rates are moderate.