The given chart illustrates the figures of renewable energy of total supply in four countries, including Australia, Germany, Norway, Iceland in 2000, 2004, and 2007. Overall, Norway was the country with the highest demand for renewable energy in most of time. In contrast, Australia lingered at the lower end of the spectrum in all three time hooks. In terms of the trend, Australia, Germany, Norway gradually increased over seven years, while Iceland had many fluctuations.
Norway excelled the diagram with highest percentage in all time hook, accounting for about 62 percent in 2000, 65 percent in 2004, and approximately 79 percent in 2007. However, Australia was the complete opposite, consuming the lowest amount of renewable energy, about 8 percent in 2000, 10 percent in 2004, and 9 percent in 2007. Germany and Iceland were 11 and 50 percent in 2000, 15 and around 58 percent in 2004, 17 and 54 percent in 2007.
Regarding the change in the demand for renewable energy from 2000 to 2007, the total supply of this energy remarkably rose in Australia, Germany, and Iceland, increasing about 2 percent in Australia, 5 percent in Germany, and around 16 percent in Norway over 7 years. Iceland, although there were some fluctuations, slightly climbed and reached 54 percent in 2007.