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By 1650, world population rose to about 500 million, not a large increase over the year 1 A.D. estimate. The average annual rate of growth was actually lower from year 1 A.D. to 1650 than the rate suggested above for the 8000 B.C. to year 1 A.D. period. By 1800, however, would population had passed the 1 billion mark, and it has continued to grow to the current 6.2 billion.

1 - 5 HOW MANY PEOPLE HAVE EVER LIVED ON EARTH?

Table 1 -1 How Many People Have Ever Lived On Earth?

Year
Population
Births per 1,000
50,000 B.C.
2
-
8000 B.C.
5,000,000
80
1 A.D.
300,000,00
80
1200
450,000,000
60
1650
500,000,000
60
1750
795,000,000
50
1850
1,265,000,000
40
1900
1,656,000,000
40
1950
2,516,000,000
31-38
1995
5,760,000,000
31
2002
6,215,000,000
23
2006
6,525,486,603*
20.05
Number of people who have ever been born
108,767,671,166
World Population in 2006*
6,525,486,603*
Percent of those ever born who are living in 2006
5.99%


(Information from the World Factbook - March 2006)
* Estimated July 1,2006

Life Expectancy at Birth tables are defined as the average number of years that a person would live, given the age-specific mortality rates of a specified year or period. Although many factors contribute to the fact that life expectancies will vary from country to country, the following chart shows a number of countries and their rankings.

Table 1 - 2 Country Rankings According to Life Expectancy in years at Birth Rates

Country
Life Expectancy in years at Birth
Ranking
Andorra
83.51
1
Japan
81.25
6
Switzerland
80.51
8
Australia
80.50
9
Canada
80.22
12
United States
77.95
48
Swaziland
32.62
226
World Average
64.77

The above information was taken from the March 2006 CIA World Factbook

1 - 6.1 Canadian Life Expectancy at birth has increased:

  • In 1850, it was age 39

  • In 1900, it was age 56

  • In 1950, it was age 67

  • In 1996, it was age 78.6

  • In 2006, it was age 80.22 * (Over the total population)

    * Only 6.88 years difference between a female and a male.