ABSTRACT

Table 5.2 also highlights how the size of the world’s largest cities has grown dramatically over the last 200 years: in 1800, the average size of the world’s 100 largest cities was less than 200,000 inhabitants, but by 2000 it was over six million. By 2000, there were 45 urban agglomerations within the world which had more than five million inhabitants, three-quarters of which were in low-and middle-income nations.