The two pie charts depict the proportions of water used in various sectors (household use, manufacturing, building, service and the food industry) in Sydney, Australia in 1997 and 2007.
Overall, the food industry accounted for the largest share in both years despite a slight decline. The service sector experienced a significant increase, whereas the building industry saw a notable decrease. The remaining sectors showed only minor changes over the period.
The food industry made up almost half of total water use at 48% in 1997, followed by the service sector at 13%. By 2007, the proportion for the food industry had fallen to 41%, while the figure for services rose sharply to 25%. This indicates a shift in water consumption towards the service sector over the period.
In contrast, the building sector decreased considerably from 5% to 2%. Household water use remained relatively stable, increasing slightly from 19% to 21%, whereas manufacturing declined moderately from 15% to 11%.