【正确答案】The chart shows population figures for four countries from 1990 to 2000 and projected growth for 2020 and 2050.
The country with the lowest population and the lowest projected growth rate is New Zealand with 3.4m in 1990 rising to 3.8m in 2000 and expected to increase to 4.7m in 2050. The United States has a similar growth rate but a much larger population, starting at 249.9m in 1990, reaching 275.1 m in 2000 and anticipated to increase by almost 100m over the 60 year period.
Canada's population rose from 26.6m to 31.0m between 1990 and 2000 and is expected to have increased by 50% from where it was in 1990 by 2050. The highest growth rate occurs in Australia where the population grew by 2.1m to reach 19.2m in 2000 and is predicted to reach 26 million by 2050.
Overall, the countries represented had, and are forecast to have, fairly stable rates of growth over the time period although their total populations differ markedly.