There are more than 7 billion people in the world.
People in the world who are younger than 15 are 1862.257.00 (26.5% of world population)
Asia 58% (of the population under 15)
Africa 22,7%
America del Sud 9%
Europa 6,2%
America del Nord 3,6%
Oceania 0,5%
Young people in the world are 1.024.000.000 (14,7% of world population).
Asia 62,4% (of the young world population)
Africa 14,1%
Europa 10%
America del Sud 9,2%
America del Nord 4,2%
Oceania 0,1%
Adults in the world (24-65 years old) are 3.596.752.000 (51,3% of world population)
Asia 58,6% (of the adult world population)
Europa 12,8%
Africa 12,3%
America del Sud 9,1%
America del Nord 6,7%
Oceania 0,5%
People in the world who are older than 65 are 530.030.000 (7.5% of world population).
Asia 53,5% (of the over 65 world population)
Europa 22,8%
America del Nord 8,5%
America del Sud 7,6%
Africa 6,6%
Oceania 1%
Africa is the only continent in the world where people under 15 are more than adults
Africa under 15 (424.072.000 41% of the population)
Africa adults (367.004.000 33% of the population)
In 2050 there will be 1.5 billion people older than 65 (20.9% of world population). In 1950 they were 5%.
People older than 65:
Principality of Monaco 28.7% (the highest)
Qatar 0.8% (the lowest)
More than 50,000 people in Japan are older than 100.
In 2013 life expectancy in the world was 70 years:
Japan 84 years (the highest)
Mozambique 41 years (the lowest)
Life expectancy of people born in 2050 will be:
83 years in developed countries
74 years in developing countries
Fonti
Eurostat; ONU; International Labour Organization (ILO); ISTAT