The pie charts provide information about the amount of water that was utilized for different purposes in Sydney, Australia, in 1997 and 2007. Overall, it is clear that while water consumption for household use and the service industry increased, the quantity of water used in the food industry, manufacturing, and the building industry decreased, with the food industry requiring the largest share of water in both years.
In 1997, almost half of all water was utilized in the food industry at 48%. It was followed by household use, manufacturing, and the service industry, where the proportion of water consumed was 19%, 15%, and 13%, respectively. The smallest share of water was used in the building industry (5%), which was almost 10 times less than in the food industry.
In 2007, the demand for water in the food industry, manufacturing, and the building industry dropped by 7%, 4%, and 3%, respectively, amounting to 41%, 11%, and 2%. Despite the decline in water consumption, these sectors maintained their positions in terms of the quantity of water required. By contrast, the trend in the amount of water consumed was upwards in the service industry and household use, with the largest growth being observed in the service industry, accounting 12%. A smaller rise was noticed in household use of water of 2%.