An Indonesian Muslim woman reads the Koran at Al Markaz Mosque during the Islamic fasting month of Ramadan in Makassar. An Indonesian Muslim woman reads the Koran at Al Markaz Mosque during the Islamic fasting month of Ramadan in Makassar, South Sulawesi on October 21, 2004. Indonesia, where an estimated 80 percent of its 238 million people are Muslim, has the world's largest Muslim population. REUTERS/Yusuf Ahmad. NO RIGHTS CLEARANCES OR PERMISSIONS ARE REQUIRED FOR THIS IMAGE.