|
| |
|
World population over
6 billion
|
The world population increased by 1.2 percent in 2002 to
total more than 6.2 billion, but its rate of growth has
slowed down, the US Census Bureau said in a new report made
public Monday.
The rate of increase translated into a net addition of about
200,000 people per day and 74 million per year in 2002,
roughly equivalent to the population of Egypt, according
to the document.
The bureau noted a slowdown of global population growth,
saying it peaked just over a decade ago.
The increase of 74 million in 2002 is substantially below
the annual high of 87 million people added in 1989-90, the
report said.
Meanwhile, the rate of growth is well below the high of
about 2.2 percent a year experienced 40 years ago.
The slowdown in global population growth is linked primarily
to declines in fertility.
In 1990, women were giving birth, on average, to 3.3 children
over their lifetimes, according to the study.
By 2002, the average had dropped to 2.6 children - slightly
above the level needed to assure replacement of the population.
The bureau projects the level of fertility will go below
replacement level before 2050.
According to the report, the rise of older age groups relative
to younger ones, will be an increasingly significant trend
in coming decades in all parts of the world.
In 2050, there will be more than three times as many people
age 65 and older as there are today.
In contrast, the number of children is expected to remain
relatively stable over the next five decades.
US demographers also projected that a number of African
countries will experience levels of mortality during this
decade that will lower the average life expectancy at birth
to around 30 years by 2010, a level not seen since the beginning
of the 20th century. Much of this decline in life expectancy
is likely to result from the AIDS epidemic.
|
|
|
|
