ps. The Metropolitan Area of Campinas is not growing that fast. Its population growth rate (average geometric rate of annual growth) from 2000 to 2009 was estimated as 1.90% with a declining trajectory.
* E.g. "Overall, the populations of Europe's cities are growing at barely 1%, the lowest rate of any continent. With low birthrates and growing opposition to immigration, it seems unlikely that any European city will emerge as a bigger global player in 20 years than today."