Se você ainda não compreendeu bem o que acontece com o mundo, fique atento.

O quadro abaixo foi retirado do http://www.un.org/esa/population/publications/sixbillion/sixbilpart1.pdf

TABLE 1. WORLD POPULATION, YEAR 0 TO NEAR STABILIZATION
Year Population
(in billions)
0 0.30
1000 0.31
1250 0.40
1500 0.50
1750 0.79
1800 0.98
1850 1.26
1900 1.65
1910 1.75
1920 1.86
1930 2.07
1940 2.30
1950 2.52
1960 3.02
1970 3.70
1980 4.44
1990 5.27
1999 5.98
2000 6.06
2010 6.79
2020 7.50
2030 8.11
2040 8.58
2050 8.91
2100 9.46
2150 9.75
Near stabilization (after 2200) Just above 10 billion

Source: United Nations Population Division.

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