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The image presents a line graph depicting the average monthly change in prices of copper, nickel, and zinc for the year 2014, measured as percentage change in price compared to previous month. Copper starts at approximately -3.5% in January, peaks at approximately 5% in July, and ends at approximately 0% in December. Nickel starts at approximately -2% in January, peaks at approximately 6.5% in May, and ends at approximately -1.5% in December. Zinc starts at approximately -1.5% in January, peaks at approximately 3.5% in July, and ends at approximately -2% in December. Copper shows a consistent increase from January to July, followed by fluctuations and a decrease towards the end of the year. Nickel shows a sharp increase from April to May, followed by fluctuations with a general downward trend. Zinc shows moderate increases and decreases throughout the year with no clear overall trend. Each data point is marked by a symbol representing the respective metal, with a key provided at the bottom of the graph.
Given the complexity of the image, the above description may not be entirely accurate.
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The line graph illustrates the changes in the average monthly prices of three types of metals, namely copper, nickel and zinc over a period of a year (2014). The changes in the prices are measured with percentages in comparison with the previous month. Overall, all of the metals saw falling trends in the first half of the year, while the second half came with the opposite trends.
The cost of nickel started the first month of 2014 with a 6% growth when compared with the previous month, which was the highest increase ever in this year. This was followed by a sharp and a gradual decrease, and nickel became 3% cheaper than it used to be in June. With copper, it was 2% more expensive in January, and it decreased gradually by close to -1% in June. Notably, Zinc commenced the year with a 1% higher cost and rose sharply to 3% higher level in February before falling and becoming 1% cheaper in the first summer month.
After June, the figures for all metals experienced a similar upward trend. The value of nickel grew by 4%, ending the year with a percent higher level than the previous month. Copper went up in value, and became almost the same as in January when the period ended. Zinc also began to increase from June and in December was a percent higher than it was initially.
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