-1.2% (2021 est.)

In 2020, rate of natural increase for United States of America was 3.01 persons per thousand population. Rate of natural increase of United States of America fell gradually from 6.56 persons per thousand population in 1971 to 3.01 persons per thousand population in 2020.

In 2020, rate of natural increase for WORLD was 10.36 persons per thousand population. Rate of natural increase of WORLD fell gradually from 19.98 persons per thousand population in 1971 to 10.36 persons per thousand population in 2020.

The rate of population growth is the rate of natural increase combined with the effects of migration. Thus a high rate of natural increase can be offset by a large net out-migration, and a low rate of natural increase can be countered by a high level of net in-migration.

China census: Data shows slowest population growth in decades

• China’s population grew at its slowest pace in decades, according to government data released on Tuesday.
• The average annual growth rate was 0.53% over the past 10 years, down from a rate of 0.57% between 2000 and 2010 – bringing the population to 1.41bn.

Niger

Currently, Niger has the highest RNI, growing at 3.78%, and Bulgaria has the lowest, at -2.79%.

In 2020, rate of natural increase for China was 3.88 persons per thousand population. Rate of natural increase of China fell gradually from 24.88 persons per thousand population in 1971 to 3.88 persons per thousand population in 2020.

Germany rate of natural increase was at level of -1.99 persons per thousand population in 2020, up from -1.9 persons per thousand population previous year, this is a change of 4.47%.

Crude Birth Rate for China (SPDYNCBRTINCHN) Download

Denmark rate of natural increase was at level of 1.05 persons per thousand population in 2020, up from 1.01 persons per thousand population previous year, this is a change of 3.55%.

The three main causes of population change

• Births – usually measured using the birth rate (number of live births per 1,000 of the population per year).
• Deaths – usually measured using the death rate (number of deaths per 1,000 of the population per year).
• Migration – the movement of people in and out of an area.

Africa and Southwest Asia have the highest NIR, while Russia and Europe have negative rates.

Rather, the findings indicate that there are many countries in the world where the rate of replacement is greater than 2.1, which is a direct consequence of higher levels of mortality and skewed sex ratios at birth, resulting from sharp gender inequalities.

Where are the most densely populated countries located? How are total fertility and infant mortality related? ? What challenges do societies with high or low NIRs face? [Housing, health care, schooling, and employment are some challenges faced.]

What challenges do societies with high or low NRIs face? [Housing, health care, schooling, and employment are some challenges faced.]

Other possible negative impacts of a declining population are: A rise in the dependency ratio which would increase the economic pressure on the workforce. A crisis in end of life care for the elderly because there are insufficient caregivers for them.