The graph below shows the average monthly change in the prices of three metals during 2014. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

The line graph compares the average monthly change in the

costs

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of three

metals

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in 2014.

Overall

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, during

this

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twelve-month period, the average price of

nickel

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was the biggest,

when

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while

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the other two types of

metals

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much

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were much

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less in one year. In February, the average value of the zinc moved upward,

while

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the

costs

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of

nickel

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and copper declined. All metal

costs

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kept a downward tendency until June, especially

the

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when the

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average value of

nickel

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collapsed.

However

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, the values of 3

metals

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indicated stability until September. After a little decrease, the

costs

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of copper and zinc rose,

when

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while

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the price of

nickel

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unchanged

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was unchanged

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. As can be seen from the line graph, the medium prices of 3

metals

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fluctuated considerably in 12 months.