The bar chart compares the water levels in reservoirs across six Australian cities—Darwin, Sydney, Melbourne, Brisbane, Perth, and Canberra—during October 2009 and 2010. The data shows the percentage of water in the reservoirs relative to their maximum capacity in both years.
Overall, while water levels in most cities increased from 2009 to 2010, Darwin experienced a significant decrease, and Canberra had the highest water levels in both years.
In Darwin, the water level dropped dramatically from around 45% in 2009 to 25% in 2010. On the other hand, Sydney saw a slight increase from 75% to 82%, indicating a steady rise. Melbourne also showed an improvement, with water levels rising from 22% to 40%.
Brisbane remained unchanged, with the water level staying stable at approximately 58% throughout the two years. Perth experienced a substantial increase from 40% in 2009 to 70% in 2010. Similarly, Canberra had the highest water levels in both years, rising from nearly 75% to 90%.