Household Water Use by Region

The line graph below shows the average daily water consumption per person, measured in litres, in four regions of the world between 1990 and 2020. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

The vertical axis shows litres per person per day, ranging from 0 to 400, and the horizontal axis shows the years 1990, 2000, 2010 and 2020. North America begins highest at around 360 litres and falls steadily to about 300 by 2020. Europe starts at roughly 250 litres and declines gently to 200. East Asia rises from about 120 litres to a peak of 190 in 2010 before dipping slightly. Sub-Saharan Africa remains the lowest throughout, increasing only marginally from around 40 to 60 litres over the period.