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Teaching Economics

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Data Starter: Airconditioning units

Elizabeth Veal

4th October 2024

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Projected number of Airconditioning Units

Using this OurWorldinData chart, answer the following questions:

1. Calculate the percentage change in the total number of air conditioning units between 1990 and 2020. Give your answer to two decimal places.

2. How is China's share of total air conditioning units projected to change between 2020 and 2050? Show your working.

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Elizabeth Veal

Liz has taught Economics for over 25 years, including several years as Head of Economics at leading schools.

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