Data are from the UN Department of Economic and Social Affairs′ report on world population prospects, 2010.15 GCC=Gulf Cooperation Council countries (Bahrain, Kuwait, Oman, Qatar, Saudi Arabia, United Arab Emirates) LDAC=least developed Arab countries (Comoros, Djibouti, Somalia, Sudan, Yemen). Maghreb=Algeria, Libya, Morocco, Tunisia, Mauritania. Mashreq=Egypt, Iraq, Jordan, Lebanon, occupied Palestinian territory, Syria.