The following pie graphs give data on the use of household water in 1988 and 2008.
Overall, it is evident that the figure for bathrooms made up a bulk of water usage in both years. While the consumption of water in kitchens increased substantially, that in gardens dropped dramatically.
In 1988, the largest proportion of residential water was consumed in bathrooms, representing 25%, followed by clothes washing and gardens, which made up 22% and 20%, respectively. Furthermore, residential water use in restrooms and kitchens comprised tiny proportions between 15% and 18%.
By 2008, there had been some notable alterations in water use. The figure for gardens witnessed a dramatic decrease, constituting at a tiny percentage of 8%, whereas that of kitchens grew substantially roughly by a factor of 2 and became a primary water consumer. As for the other household water supplement usages such as toilets and clothes washing, they fell just moderately by 3%-4%. In contrast, that of bathrooms increased gradually to 29%.