Qatar population was 2.6 million: 313,000 Qatari citizens and 2.3 million expatriates. Islam is the official religion of Qatar. The country has the highest per capita income in the world. Qatar is classified by the UN as a country of very high human development and is widely regarded as the most advanced Arab state for human development. Qatar is a high-income economy, backed by the world's third-largest natural gas reserves and oil reserves. Qatar has been ruled by the House of Thani since Mohammed bin Thani signed a treaty with the British in 1868 that recognised its separate status. Following Ottoman
Jumada al-Thani of a new moon is sighted. Since the Islamic lunar calendar year is 11 to 12 days shorter than the solar year, Jumada al-Thani migrates throughout the seasons. The estimated start and end dates for Jumada al-Thani are as follows (based on the Umm Al-Qura calendar of Saudi Arabia): In Islamic eschatology: Jumada al-Thani Jumada al-Thani (, also transliterated ', ; also pronounced ', ) is the sixth month in the Islamic Calendar. It is also known as Jumaada al-Akhir and Jumada al-Akhira (, also transliterated "/", ; also pronounced "/", ). This is the sixth month of the Islamic