In contrast, 24.8 per cent of the world population lived in urban settlements with fewer than 500,000 inhabitants and by 2015 that proportion will likely rise to 27.1 per cent.
相比之下，24.8％的世界人口居住在居民人数不到500 000人的城市住区，到2015年，这一比例将可能升至27.1％。