Population Reference Bureau: “For more than 70 years, the Population Reference Bureau has been informing people about the population dimensions of important social, economic, and political issues. Our mission is to be the leader in providing timely and objective information on U.S. and international population trends and their implications. To increase the quality and relevance of our work and expand our reach and influence, we frequently collaborate with other organizations both in the United States and other countries. Our donors and partners ? government agencies, nongovernmental organizations, foundations, and universities ? include the Bill & Melinda Gates Foundation, the U.S. Agency for International Development, the United Nations Population Fund, the Annie E. Casey Foundation, Save the Children, the University of Costa Rica, Thailand’s Mahidol University, the Population Council, and the National Institute of Child Health and Human Development.”