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 illustrates the percentage

change

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in the

price

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of copper, nickel and zinc during a one-year period.

Overall

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, it can be noticed that all metals experienced significant fluctuations in the year 2014. All three metals saw a downward trend and had a plateau from July to September. At the beginning of the period, the average monthly adjustment in cost for nickel was 6%, which is the highest of those presented during the one-year period. It

then

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experienced a rapid fall to -3% in June to reach its minimum.

Then

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, the

change

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in the

price

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increased by 2% and from July to September the

change

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plateaued at the level of -1%.

At the end

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of the year, it climbed to 1%. As for the copper, it began at 2% and

then

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had a steady decrease until June, when it was -0.5%. Starting from July, the

change

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in

price

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grew slightly to 1% and remained steady for 3 months before experiencing several fluctuations. It reached 1.5% in December 2014. In terms of zinc, it

firstly

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rose from 1% to 3% before falling into decline. In June, the difference in cost was -1% and

then

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demonstrated a moderate climb to approximately -0.5%, where it was unchanged until September. There was a slow decrease in October,

however

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, the

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in

price

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for copper

then

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rocketed to 2%, which is slightly higher than the initial one.