ࡱ> RTQU@ bjbj ;    8> J 50j j j j j <<<///////$2Rc4B/K@@KK/j j R/Kj j /K/,.j ^ Pu ad-/0050|-\4w.40.4.<|fd<<<//$$ Migration in Rio  Rio de Janeiro has undergone rapid urban growth over the past 40 years. With around 6 million people living in the city itself, Rio today still ranks as one of the worlds largest cities. Major migration began in the 1920s as industrialisation attracted new migrant populations. The number of inhabitants duplicated in ten years reaching 2,380,000 in 1930 1940 -1960 saw growth rate of 3% due to immigration movements and high fertility rates Industries moved to suburbs and workers commuted from the core to the periphery By the 1950s suburbs were so crowded that the only areas still to be occupied were those which were environmentally fragile swamps, steep hills, mangroves and river banks Migration was highest in 1940s and 1950s with 38% of population originating from outside the city Growth spread to the outskirts and previously uninhabitable areas In the 1960s there were increasing problems as the population grew from 3,281,100 to 4,261,918 in 1970 a growth of 30% Then capital moved to Brasilia and the city lost political importance The city of Rio still continued to attract migrants however from other parts of the country and remained important cultural and service centre Regained economic importance from the mid-90s which had a big impact on demographic patterns Rio maintained stability with population dynamics Last census in 2000 shows that the core cities of Brazil, Rio included have not only experienced population growth rate decrease, but also that they are no longer attracting significant numbers of migrants. The age/population structure of Rio confirms the historic trend of it being the state with highest number of elderly people. Younger sections are losing importance due to decrease in Birth and Death Rates, a trend that started in Rio before other parts of Brazil Modern trends are: decreasing pop growth increases in proportion of elderly pop over 750,000 strong predominance of women around 362,000 more than men High concentration in the oldest parts of the city where there is better infrastructure, services, facilities, and work These areas attract an important part of the low-income people who are occupying the illegal areas which are still vacant Some of these areas now being abandoned due to: Decentralisation of activities in CBD to boroughs Attraction of new resident pops Movement of high-income classes to coastal expansion areas in east of city   ( , 6 ; ? 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