The diagram provide information about percentage of renewable energy of the total supply in three years, 2000, 2004, and 2007 in four countries. Overall, it is evident that Norway possessed bulk of renewable energy, while the least renewable energy source was in Australia.
In 2000, Norway reused most of total energy with 62%, while Iceland was in the second place by 52%. The least renewable energy source were applicable to Germany and Australia, showing 12% and 8% respectively.
In 2004, volume of energy increased slightly, Norway produced 64% and Iceland did 59%. However, Germany reproduced approximately 14% and renewable energy was 10% in Australia.
In 2007, proportion of renewable energy of Norway and Germany increased noticeably, showing 79% and 18% respectively but Australia experienced a slight decrease, 9%, as well as Iceland with 55%.
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