Lots of funny looking graphs

Chapter 2 Key Issue 3

Demographic Transition Model

Population Growth for Human History

DTM for England

Age distributionDependency ratio: number of

people who are too young/old to work compared to the number of productive people.

0-14 and 65+ are dependent15-64 are productive

Sex ratioNumber of females and males in a

population

Population Pyramids

Highest Percentages of U15

Cape Verde

Notice the very large gap between birth and death rates since 1950. Indicative of Stage 2.

Chile

Notice the very large gap between birth and death rates 1930-1960 and the corresponding decrease in birth rate in 1960. Indicative of Stage 3.

Denmark

Notice the very large gap between birth and death rates 1830-1890 (Stage 2); decline in birth rate 1890-1970 (Stage 3) and “zero population growth” since 1980.

Guess where…