The pie charts depict how the water is used in five different aspects by resident in 1988 and 2008 and the units is measured in percentage.
Overall, it is readily apparent that the number of water used by residents was allocated similarly in 1988. After the twenty years period, the needs of water usage in kitchen was growing considerably.
In 1988, the figure of water consumption was lowest in kitchen, however, it distributed to a significant increased by 29 percent in 2008. The third higher usage was located in plant activity, by contrast, people are tended to reduce the water consumption in gardening with only 7 percent in 2008.
In terms of the remaining three, bathroom, toilets and washing water usage. Bathroom provided the second highest proportion in 2008 with 28 percent. Washing and toilets both experienced a slightly downward trend with three percent and four percent respectively.