The graph illustrates the average prices of three metals

The graph illustrates the average prices of three metals that have been changed in the

year

of

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2014.

Overall

, all of the prices were in

the

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a

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downward trend but in the

last

two

months

of the

year

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year,

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the prices

were

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recovered to rise. Looking for more details, the

price

of copper in the first month of the

year

was 2 and it started to decrease to reach the lowest

price

in June

for

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at

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-1%.

However

, the

price

was

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rebounded to increase

with

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by

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1% in July and remained

steadily

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steady

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around the

price

for the next three

months

before falling

for

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by

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0.5% in October and November and starting to rebound again in December to achieve 2%. Considering next for the ratio of the nickel, it started with the highest

price

in January, at 6% but it sharply decreased in the next two

months

to reach 1% in March. The

percent

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per cent

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was slightly changed until May, but it considerably

fallen

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fell

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in June to rate at -3 in June and it moderately rebounded to

be

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-1% in July and remained

stably

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stable

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for the next three

months

. In the

last

quarter of the

year

, the proportion of the

price

was fluctuating because it decreased

for

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by

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-1% in October and noticeably rose in the

last

two

months

of the

year

, with over the percentage

1

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of 1

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% in December.