Somalias population is expanding at a growth rate of 1.75% per annum and a birth rate of 40.87 births/1,000 people. The total fertility rate of Somalia is 6.08 children born per woman (2014 estimates), the fourth highest in the world, according to the CIA World Factbook. Most local residents are young, with a median age of 17.7 years; about 44% of the population is between the ages of 0–14 years, 52.4% is between the ages of 15–64 years, and only 2.3% is 65 years of age or older. The Sex ratio is roughly balanced, with proportionally about as many men as women.. Which age group populates the country most?