Ever wonder the current population estimates and projections?
The world population reached 7.3 billion as of mid- 2015, implying that the world has added approximately one billion people in the span of the last twelve years.
Currently, the world population continues to grow more slowly than in the recent past. Ten years ago, world population was growing by 1.24 percent per year. Today, it is growing by 1.18 per cent per year. At the current rate, the world is adding an additional 83 million people annually. The world population is projected to increase by more than one billion people within the next 15 years, reaching 8.5 billion in 2030, and to increase further to 9.7 billion in 2050 and 11.2 billion by 2100. Projections are made with 95 per cent confidence.
Sixty per cent of the world lives in Asia (4.4 billion), 16 per cent in Africa (1.2billion), 10 per cent in Europe (738 million), 9 percent in Latin America and the Caribbean (634 million), and the remaining 5 per cent in Northern America (358 million) and Oceania (39 million). China (1.4billion) and India (1.3 billion) remain the two largest countries of the world, both with more than 1 billion people, representing 19 and 18 per cent of the world’s population, respectively.
As of 2015, 50.4 per cent of the world’s population is male and 49.6 per cent is female. The median (average) age of the global population, meaning, the age at which half the population is older and half is younger, is 29.6 years. About one-quarter (26 per cent) of the world’s people are under 15 years of age, 62 per cent are aged 15-59 years, and 12 per cent are 60 or over.
More than half of the population growth between now and 2050 is expected to occur in Africa. Regardless of the uncertainty surrounding future trends with fertility in Africa, the large number of young people currently on the continent who will become adults in the coming years as well as have children of their own, ensures that the region will play a key role in shaping the size and distribution of the world’s population over the coming decades.
Asia is projected to be the second largest contributor to future world population growth; followed by Northern America, Latin America and the Caribbean and Oceania, which are projected to have much smaller increments. Europe is projected to have a smaller population in 2050 than in 2015.
During the time span between 2015 to 2050, half of the world’s population growth is expected to be concentrated in nine countries: India, Nigeria, Pakistan, Democratic Republic of the Congo, Ethiopia, United Republic of Tanzania, United States of America, Indonesia and Uganda – listed according to the size of their contribution to the total growth. The population of China is expected to remain fairly constant until the 2030s, after which it is expected to slightly decrease.
Life expectancy at birth rose by 3 years between 2000-2005 and 2010-2015, that is from 67 to 70 years. All major areas shared in the life expectancy gains over this period, but the greatest increases were in Africa, where life expectancy rose by 6 years in the 2000s after rising by only 2 years in the previous decade. Life expectancy in Africa in 2010-2015 stood at 60 years, compared to 72 years in Asia, 75 years in Latin America and the Caribbean, 77 years in Europe and in Oceania and 79 years in Northern America.
In 2015, there are 901 million people aged 60 or over, comprising 12 per cent of the global population. The population aged 60 or above is growing at a rate of 3.26 per cent per year. Currently, Europe has the greatest percentage of its population aged 60 or over (24 per cent). With that being said, by 2050, all major areas of the world except Africa will have nearly a quarter or more of their populations aged 60 or over. The number of older persons in the world is estimated to be 1.4 billion by 2030 and 2.1 billion by 2050, and could rise to 3.2 billion in 2100.
World Source: Department of Economic and Social Affairs