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

The diagram illustrates the percentage of four different matters that were recycled from 1982 to 2010 in a certain country.

Overall

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, three materials had similar increasing trends in recycling rates from 1990 to 2010. In the same period, the paper and cardboard

rate

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increased in the first four years,

then

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it was steadily declining. The recycling activity for aluminium cans started in 1986,

whereas

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it was initiated 4 years later for plastics. From 1982 to 1990, the paper and cardboard recycling

rate

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had a quite similar declining pattern with glass containers except in 1986. Both materials reached their lowest recycling rates in 1990. The recycling

rate

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of paper and cardboard was approximately 60.5 per cent,

while

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that of glass containers stood at 40 per cent. In 1986 aluminium cans were first recycled at

0.5

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a 0.5

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per cent

rate

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.

This

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value was similar to the recycling activity

rate

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of plastics which was started in the four next years, 1990. From 1990 onwards, these two materials and glass containers had steadily rising patterns of recycling rates.