The two pie charts present a comparative analysis of water utilization across different sectors in two distinct years, 1997 and 2007.
A notable shift in water consumption patterns is observed between the two years, particularly marked by a significant decline in the food industry and a modest increase in household usage, alongside fluctuating patterns in other sectors.
In 1997, the building industry was the predominant consumer, accounting for 48% of total water usage. This figure showed a decrease to 41% by 2007. Conversely, household consumption exhibited a slight rise from 19% to 21% over the same period. The manufacturing sector experienced a reduction in water use, declining from 15% in 1997 to 11% in 2007, highlighting a downward trend that is consistent with the overall shift in industrial water consumption.
The food industry primarily contributed to the overall water consumption in 1997 with 13%, which surged to 25% by 2007, reflecting a marked increase in its water requirements. In stark contrast, the service industry displayed a minimal usage rate, beginning at 5% in 1997, which dropped to only 2% by 2007. This demonstrates a significant evolution in water allocation priorities across sectors over the studied decade.