The chart shows the proportion of renewable energy in total energy supply in 4 countries from 1997 to 2010.

The chart illustrates the proportion of renewable

energy

in total

energy

supply in four distinct countries in the

year

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years

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1997, 2000, and 2010.

Overall

, it is evident that Iceland relied on renewable

energy

the most among the four countries in all the three years measured, followed by Turkey.

In contrast

, the portions of renewable

energy

in Australia and Sweden ranked lowest across the period. Iceland saw a steady increase in the domestic supply of renewable

energy

; the

figure

for its share of total

energy

in 1997 started at 45%, increasing to 60% in 2000, and

further

rose to 70% in 2010. Meanwhile, the

figure

for Turkey fluctuated over the course; the

figure

standing at just below 40% in 1997 slightly climbed to just above 40% in 2000, but moderately reduced to around 32% in 2010.

By contrast

, Australia and Sweden produced the least amount of renewable

energy

. In Australia, the

figure

started at around 9% in 1997 and gradually dropped every year, reaching 4% in 2010.

On the other hand

, Sweden saw a slight but continuous

gowth

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growth

in its share of renewable

energy

throughout; its 1997

figure

of 5% almost doubled in 2010.