The provided bar chart depicts data on the water levels of six different Australian cities during the month of October in both 2009 and 2010.
Overall, it is clear that the level of water in the reservoirs of six cities saw a fluctuation over the period. Although most cities experienced an upward trend, only one city, Darwin, experienced a downward trend.
According to the bar chart, Canberra had the highest water level, at over 75% in 2009 and nearly 100% in 2010. This was followed by the water capacity in Sydney, which increased slightly to just over 80% in 2010. Next, Brisbane remained unchanged at around 58% in both years.
Moreover, the water capacity in Perth witnessed a sharp increase, rising from approximately 40% in 2009 to 70% in 2010. Contrary to the other five cities, Darwin saw a falling tendency, decreasing from about 40% in 2009 to 20% in 2010; this figure was the lowest in 2010. Next, Melbourne’s water level rose by 20% in 2010; however, in 2009, it was at 20%, making it the lowest that year.