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

The given line graph illustrates the percentage of recycled materials namely

paper

and

cardboard

, glass containers, Aluminium cans and plastic from 1982 to 2010

Overall

, the figures for glass containers and

aluminum

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aluminium

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are recycled materials, which had an upward trend

while

plastics and

paper

and

cardboard

fluctuated insignificantly.

However

,

paper

and

cardboard

still were the most recycled material. In 1982, the proportion of reused glass containers was 50%, after 8 years it decreased slightly by 10%. From 1990 to 2010

this

number grew gradually to 60% .

However

,

aluminum

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aluminium

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cans started to be recycled

in

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around the 1980s with nearly 5%,

then

this

figure rose sharply to approximately 45% in 2010. Turning to

paper

and

cardboard

, the proportion of reused material was about 65%. There was a minimal fluctuation in

this

number from 1982 to 1990,

while

plastics began to be reused with 5%, which was similar to Aluminum cans. In the rest of

this

period, when the proportion of

paper

and