The bar graph illustrates the proportion of renewable energy in the total energy supply across four countries—Australia, Sweden, Iceland, and Turkey—from 1997 to 2010.
Overall, the data reveals a positive trend in renewable energy usage in Sweden and Iceland, contrasting with a decline in Australia’s usage and a fluctuating pattern in Turkey’s figures. Notably, Iceland consistently maintained the highest proportion of renewable energy throughout the observed periods.
In detail, Iceland’s renewable energy supply began at 46% in 1997, experiencing a moderate increase to approximately 60% in 2000, and further rising to about 70% by 2010. Turkey, on the other hand, started at 38% in 1997, witnessed a rise to 40% in 2000, but ultimately declined to around 32% in the final year. This indicates a significant upward trajectory for Iceland while Turkey’s renewable energy contributions showed a more volatile pattern over the same timeline.
Conversely, Australia presented a contrasting trend, as its renewable energy percentage dropped from approximately 9% in 1997 to around 6% in 2000, culminating at only 4% in 2010. In stark contrast, Sweden’s proportion of renewable energy revealed a steady increase, beginning at roughly 5% in 1997, rising to about 6% in 2000, and culminating at nearly 80% by 2010. This marked an impressive growth, showcasing Sweden’s commitment to enhancing its renewable energy capacity, in contrast to the decline experienced by Australia.