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The image depicts a line graph showing the average monthly change in prices for copper, nickel, and zinc during 2014, with the y-axis representing the percentage change in prices compared to the preceding month, ranging from -3% to 7%, and the x-axis showing the months January to December. Copper's prices fluctuated from a 3% decrease in February to a 6% increase in May; nickel's prices ranged from a 1% decrease in January to a 7% increase in May; and zinc's prices varied from a 2% decrease in January to a 4% increase in September.
Given the complexity of the image, the above description may not be entirely accurate.
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The graph shows monthly price changes for three metals in 2014
Overall , all three types of metals subject to price changes . While copper and nickel decreased in price , zinc has undergone significant growth
The decline for copper was not so serious . During whole year it decreased only for less than one percent. Its price has not increased during the year and its lowest point was decrease to 0.5 percent. The main decrease was in price of nickel. In period from January to June it get lower for approximately 10 percent .
As we know, zinc increased in price and the most important moment was in the period from October to December where a jump amounted by as much as 3 percent
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