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Population Pyramids. How to analyze. Population pyramids give lots of information. Total population of a country Broken down in age groups of 4 years ( cohort groups) i.e. age 0-4, 5-9, 10-14, 15-19 etc… Divides population by gender Shows average life expectancy
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Population Pyramids How to analyze
Population pyramids give lots of information • Total population of a country • Broken down in age groups of 4 years ( cohort groups) i.e. age 0-4, 5-9, 10-14, 15-19 etc… • Divides population by gender • Shows average life expectancy • Shows how many die in each age group
Canada Population Pyramid for 2005 Age and sex distribution for the year 2005:
Types of Pyramids • Different countries will have different shaped pyramids. • The pyramids are different due to the different standards of living each country has.
Early Expanding Characteristics • Poverty an extreme challenge • Many babies dying early ( lack of proper food, medical attention, poor hygiene, polluted water) • Many births, but many dying as well. • Top of pyramid very narrow…low life expectancy • Struggle to survive day to day. • Note: Pointy peak, wide bottom, classic pyramid shape
Expanding Characteristics • Poverty still a challenge, but not as bad as early expanding. • Births still high, but not as high. • Living standards are improving. • Proper diet still lacking, but better than early expanding. • Note: still has a classic- pyramid shape
Stable Characteristics • Birth rates dropping off…bottom is narrower. • Poverty for many, but a middle-class is developing. • Food supply is adequate • Healthcare improving • Life-expectancy is getting higher • Note: Pyramid-shape is shifting to more rectangular- shape.
Contracting Characteristics • Income evenly distributed…strong economy. • Healthcare is available to all and is modernized. • Food supply stable. • Life-expectancy is high. • Birth-rate almost the same as death-rate. • (= zero population growth) • Note: Pyramid shape is almost more a rectangle
A Planet Divided • The “Haves” and the “Have Nots”