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

The line graph illustrates the proportion of amounts placed on three metals, namely copper,

nickel

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and

zinc

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every four weeks in 2014.

Overall

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, all the depicted metals worth experienced fluctuation throughout the year. It is

also

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noticeable that

nickel

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and

zinc

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had a reverse result from their initial value

in contrast

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to the end of the year. In January,

nickel

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was the most expensive of all, at a rate of 6%.

However

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, it dropped significantly until March when it plateaued at 1% in April, from there,

this

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fall and rise pattern stayed and amounted to the lowest price of 1%.

On the contrary

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, Starting as the least valued metal in January at 1%,

zinc

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value experienced its first peak a month later at 3%. Notwithstanding, it

then

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dropped substantially to around -1% in June and levelled off that range until October when it consistently grew and tripled by the end of the season. Regarding copper, copper

also

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had erratic growth but maintained its middle rank as it was

initially

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. To

further

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illustrate, a 2% change in price was made in January, and

this

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sank lower till May when it was just above -1%, in the following month it rose high to surpass

nickel

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and

zinc

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, but in the end, it was still on the second level accounting for a little above 1% change.