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.

Contained in the line graph is data pertaining to the variation in the cost of three different materials in the year 2014. The units were measured in per cent. In general, it can be observed that all three metals experienced an upward trend during the timeframe with the exception of

nickel

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.

Additionally

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, it should

also

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be noted that

nickel

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had the highest rate of change in price compared with the other two materials at

first,

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however

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, its position was replaced by

zinc

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at the end

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of the period. Examining the figures in more detail, it can be observed that in January 2014,

Nickel

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held the highest point with exactly 6%,

then

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its rate witnessed a significant decline throughout five months from 6% to -2% until reached the low of -3% before rising up again to 2% in

last

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month. With regard to the remaining data, it can be seen that both copper and

zinc

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had an increase in cost. Moving on to

zinc

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, its percentage was recorded at roughly 1% at

first,

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after that these figures fluctuated upward throughout the period previously reaching 2% where

zinc

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replaced

nickel

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and

becoming

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became

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the metal with the highest changing rate. Meanwhile, from the first recorded data, copper started at the second highest point with 2%,

then

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its number dipped gradually to merely under 0% prior to going up to 1% and remained at

this

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number for 2 months between July and September,

finally

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, copper

last

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jumped up to approximately 2% on December.