The graph below shows the average monthly change in the prices of three metals during 2014.

The line chart provides information about the average monthly

changes

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in the prices across three different metal categories, namely copper, nickel, and zinc in 2014.

It is clear that

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the prices of all three metals fluctuated during the given period. Another notable point is that the three types of metals ultimately exhibited similar

price

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change trends. Looking at the information in more detail, nickel's

price

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changes

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(the

price

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changes

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of nickel) started at 6% in January and

then

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dramatically decreased to 1%.Afterwards, it reached a low point of -3% in June, rose to 1% in November, and remained at

this

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level in December. In terms of the

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changes

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for copper, it began at 2% and gradually diminished to -0.5% in May.

Following

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this

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decline, it reached a plateau

at

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of

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1% during July and September.

Finally

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, the

price

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change increased to 2% in December.As for zinc, it started at 1% and grew to 3%,

then

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significantly decreased to -1% in June, which was the same percentage as in October. By December, the percentage reached its highest point at 2% compared to the other metals.