Annual revenues of Tigris and Euphrates river amounted to 93.47 billion/m3 during 2019 Annual revenues of Tigris and Euphrates river amounted to 93.47 billion/m3 during 2019 2020-10-08 00:00:00 - Source: Shafaq News Annual revenues of Tigris and Euphrates river amounted to 93.47 billion/m3 during 2019