The graph below shows the proportion of four different materials that were recycled from 1982 to 2010 in a particular country.

The graph illustrates the percentage of four different

materials

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,

paper

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and

cardboard

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, glass containers, aluminium cans, and plastics, that experienced recycling between 1982 and 2010.

Overall

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,

paper

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and

cardboard

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were the most recycled

materials

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,

although

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their trend was declining

while

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others experienced an upward trend, albeit with some fluctuations.

Initially

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,

paper

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and

cardboard

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had a higher recycling

rate

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than the other

materials

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, which was less than 70% in 1982. The

rate

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increased to 75% in 1986 but dropped abruptly to around 65% in 1990. The recycling

rate

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fluctuated

thereafter

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, with a peak of over 80% in 1994 and

then

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gradually declining to 70% in 2010. Compared to the other

materials

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,

paper

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and

cardboard

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had a higher recycling

rate

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. The recycling

rate

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for glass containers increased by 5% in 1982 but significantly dropped to 40% in 1990. It

then

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rose again to 50% in the following year and continuously increased throughout the period, reaching 60% in 2010. Aluminium cans and plastics followed a similar pattern, with aluminium cans beginning to be recycled in 1986 at a

rate

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considerably less than 10%.

This

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rate

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increased significantly to 45% in 2010.

In contrast

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, the recycling

rate

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for plastics was the least throughout the period, ranging from under 5% to close to 10%.