Saturation of the urbanization process  mid-1970s
Fall of the rate of growth:
    reduced immigration/ vegetative growth rate
 

Demographic forecast 2000-2050
Population and growth rate

2000	2010	2020	2030	2040	2050
17.644	19.938	22.199	24.521	26.953	29.538
1.50	1.23	1.08	1.00	0.95	0.92