1. Lots of funny looking graphs

5. Age distribution Dependency ratio: number of people who are too young/old to work compared to the number of productive people. 0-14 and 65+ are dependent 15-64 are productive Sex ratio Number of females and males in a population

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

9. 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.

10. 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.