In demographics, the world population is the total number of humans currently living. As of March 2016, it was estimated at 7.4 billion, an all-time record high.The United Nations estimates it will further increase to 11.2 billion in the year 2100.
Human population has been growing continuously since the end of the Black Death, around the year 1350, although the most significant increase has been in the last 50 years, mainly due to medical advancements and increases in agricultural productivity. The rate of population growth has been declining since the 1980s. The United Nations has expressed concern on continued excessive population growth in sub-Saharan Africa.[4] Recent research has demonstrated that those concerns are well grounded.As of July 21, 2016 the world's human population is estimated to be 7.339 billion by the United States Census Bureau, and over 7 billion by the United Nations.
Listed below are the top five list of the contries with highest population by July 2015.
World Population:
5. Brazil
Population:209,567,920
Based on the total number of births, total number of deaths, net
migration rates, and the population of 2013, the current population of
the Federative Republic of Brazil.
is estimated to be about 201,398,858. As a result, Brazil is the
fifth-most populous country in the world, behind Indonesia, but ahead of
Pakistan. The current population indicates a growth of about 2,077,858
or a population growth rate of about 1.04%. Based on the total land area
and the total population, the population density of Brazil in 2016 is
about 23.65 people per square kilometer or 61.26 people per square mile.
Brazil has a total area of 8,514,876 square kilometers or 3,287,612
square miles, making it the fifth largest country in the world in terms
of area. Due to its larges size, it borders every country in South
America, except Ecuador and Chile. Brazil is located along the equator,
which is the cause of much of its climate. Geographically, the northern
portion of the country is the lower, flatter region. It is made up of
rolling terrains and low, rounded hills. However, the southern region is
made up of mountain ranges and ridges. Some mountain ranges include the
Serra do Mar and the Mantiquiera. Some of the major rivers in the
country include the Amazon, which is the world’s second longest river,
and the Parana River.
4. Indonesia
Population:260,581,100
According to projections by the United
Nations (UN) with regard to the future absolute population, Indonesia is
expected to have a population that exceeds 250 million inhabitants
by the year 2015, exceeds 270 million by 2025, exceeds 285 million by
2035 and exceeds 290 million by 2045. After 2050 Indonesia's population
is estimated to decline. The UN also projects that by 2050 two thirds of
Indonesia’s population will live in urban areas. Over the last forty
years the country has experienced a process of rapid urbanization,
resulting in the current situation in which over half of Indonesia's
total population resides in urban areas (see table below). For the
economy this constitutes a positive development as urbanization and
industrialization are necessary to grow into the ranks of a middle
income country.
The annual national population growth rate of Indonesia between 2000 and
2010 was an average of 1.49 percent. This growth was highest in the
province of Papua (5.46 percent), while the lowest figure came from
Central Java (0.37 percent). Family planning is coordinated by the
National Family Planning Coordinating Board (NFPCB), a government
institution. Under president Suharto an effective family planning
program was initiated in 1968 and - up to the present - continued by his
successors. This program is a key strategy in the country's economic
development as a low population growth rate translates into a higher per Capita Gross Domestic Product,
which translates into higher incomes, higher savings, higher
investments and implies a decline in the poverty rate among the
population. The national population growth rate in 2012 is estimated at
1.04 percent.
3. USA
Population: 324,118,787
The projections are based on a monthly series of population estimates starting with the April 1, 2010 resident population from the 2010 Census.
At the end of each year, a new series of population estimates, from the census date forward, is used to revise the postcensal estimates, including the population clock projections series. Once a series of monthly projections is completed, the daily population clock numbers are derived by interpolation. Within each calendar month, the daily numerical population change is assumed to be constant, subject to negligible differences caused by rounding.
2.India
Population:1,326,801,576
But the sharpest fall has been in Muslim population growth. It fell from an all-time high of 45.2% in the decade ending 2001 to 24.6% in 2011. Today, there are 172 million Muslims against 138 million in 2001. Despite the fall in growth, the share of the Muslim population in the country has risen almost a percentage point from 13.4% in 2001 to 14.24% in 2011.
1. China
Population :1,382,323,332
As of 1 January 2016, the population of China was estimated to be 1 375 137 837 people. This is an increase of 0.53 % (7 317 837 people)compared to population of 1 367 820 000 the year before. In 2015 the natural increase was positive, as the number of births exceeded the number of deaths by 7 276 802. Due to external migration, the population increased by 41 035.The sex ratio of the total population was 1.051 (1 051 males per 1 000 females)which is higher than global sex ratio. The global sex ratio in the world was approximately 1 016 males to 1 000 females as of 2015.
If external migration will remain on the previous year level, the population will be increased by 41 254 due to the migration reasons. It means that the number of people who move into China (to which they are not native) in order to settle there as permanent residents (immigrants) will prevail over the number of people who leave the country to settle permanently in another country (emigrants).
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