Madinah, 15 Shaaban 1436 H, June 2, 2015, SPA -- A study conducted recently by the Chamber of Commerce and Industry in Madinah has expected that the population of Madinah reaches by 2050 about 4 million people, and that the number of visitors jumps from inside and outside the Kingdom to more than 56 million visitors by 2050. The study included all sectors that form economy axes and the trends of investments and investors until 2050. --SPA 16:02 LOCAL TIME 13:02 GMT www.spa.gov.sa/w