The bar chart illustrates the percentage of renewable energy from 2000 to 2007.
In general, the percentage of renewable energy of Germany and Norway saw an upward trend. While, Australia and Iceland showed a fluctuated trend in the proportion of renewable energy. Furthermore, the data of renewable energy of Norway was the largest in 4 countries.
In 2000, the percentage of renewable energy of Germany started with about 10% and then it continued to increase to nearly 20%. The data of renewable energy of Norway was about 62% in 2000, and then a slight increase to around 65% was seen in the proportion of renewable energy had 2004, it continued to rise rapidly to nearly 80%.
In contrast, 2000 witnessed the percentage of renewable energy of Australia, at about 9% and it increased to 10% in 2004. However, Australia in the proportion of renewable energy decreased to 9% in 2007. The percentage of Iceland showed a fluctuated trend, it started from about 50% in 2000 and increased slightly to around 60% in 2004. The data of renewable energy of Iceland decreased to about 55% in 2007.
