Adolescent fertility refers to the childbearing of women who are less than 20 years old. Despite recent declines in adolescent fertility levels throughout the world, over 15 million babies are born to adolescent women each year. Adolescent fertility rates (defined as the annual number of live births to girls aged 15–19 per 1,000 girls aged 15–19) vary considerably by world region. The worldwide average for the period 2000–5 is estimated at approximately 50 per 1,000, but rates in Sub-Saharan Africa average 127 per 1,000 where countries such as Liberia, Niger, and Uganda have rates above 200 per 1,000. Adolescent fertility is also relatively high in Latin America and the Caribbean at 71 per 1,000. Together, the industrialized countries have an average rate of 24 per 1,000. As a region, East Asia and the Pacific has the lowest figure of only 18 per 1,000 due to rates of 5 or less in China, Japan, and Korea (UN Population Division 2000).