The table illustrates the household water bill in five distinct cities in Australia. Overall, the usage charge for under and above 125 kiloliters is the same in both Melbourne and Sydney. Moreover, Perth has the highest average household bill, whereas Melbourne has the lowest.
Regarding water usage under 125 kiloliters, residents in Adelaide and Perth pay the same fee at $0,42, which is the lowest rate in this category. Conversely, the remaining three cities charge above $0.70 per kiloliter, with rates of $0.78 in Melbourne, $0.81 in Brisbane, and $0.91 in Sydney, respectively.
In terms of water above 125 kiloliters, there is no change in the cost for Melbourne and Sydney, which has remained at $0.78 and $0.98 per kiloliter, respectively. In contrast, Adelaide and Perth experience a significant increase, with their rates rising from $0.42 to $1.00 in Adelaide and $1.50 in Perth. The remaining category is Brisbane, where the rate increases slightly by $0.03 per kiloliter.
Turning to the average bill per household, each household pays over $300 on average, except in Melbourne, where the figure is only $253. The inhabitants of Perth pay the highest cost at $332, while each resident in Melbourne pays the lowest fee, averaging $253.