The chart illustrates the percentage of water level in 6 different cities in Australia from October 2009 to 2010. Overall, the water levels in Sydney, Perth, and Canberra experienced an upward trend, while other figures saw a downward trend or remained stable throughout the period. It is evident that Canberra had the highest proportion of water level among those cities.
At the beginning of the period, Sydney and Canberra shared the highest water levels, at approximately 80%, followed by Brisbane, at around 60%. The figure for Darwin was at 43%, which was slightly higher than Perth. In contrast, Melbourne recorded the lowest water percentage in its reservoirs, hovering around 25%.
In October 2010, Canberra witnessed a rapid increase to nearly 100% in water levels and remained in the top position. A similar trend can be seen in Perth, which witnessed the largest increase in water levels, hitting a high of just above 70%. Sydney and Melbourne increased to 80% and 40%, respectively. In contrast, the water levels in Brisbane remained unchanged over one year, still at around 60%. Darwin encountered a notable decline in its reservoir water, decreasing to just under 30% of its capacity in October 2010.