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

The chart provides information about the average monthly change in the prices of copper, nickel and

zinc

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in 2014.

Overall

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, it can be seen that the prices of three metals witnessed a decrease in the first six months,

then

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remained static from July to September, before increasing in the

last

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months.

Moreover

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, nickel started with the highest

percentage

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variation of three but ended up in the lowest position, the opposite is true for

zinc

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. Starting at a 6%

percentage

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at the beginning of the period, the

percentage

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revolution of nickel plummeted to -3% in June and stayed unchanged at -1% for three months later, prior to considerably increasing to 1 in December. From January to February, in comparison to the proportion variation of copper, which witnessed a slight decrease to 1%, the figure for

zinc

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reached a peak of 3%. There was a two-fold decrease in the

percentage

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of change of

zinc

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in June, after which it remained stable at around -0.5% from July to September, before recovering to 2%

at the end

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of the period. Regarding copper, it reached its lowest point at around -0.5% in June. After stabilizing from July to September, the figure increased marginally to finish at 1.5%, despite a negligible dip in October.