The line graph depicts the percentage of average monthly change in prices of copper, nickel, and zinc in 2014.
Overall, despite some fluctuations, the prices of metals such as nickel and copper experienced a downward trend, while zinc witnessed an upward trend throughout the period.
To begin with, nickel showed a rapid decline, starting at 6% in January and reaching -3% by June. After that, this figure rose to -1% in July, maintaining this level until September. Despite a few changes, nickel showed an upward trend, reaching 1% in December. Copper also experienced a gradual fall, reaching 0% by June. Nevertheless, it surged to 1% in July and remained constant until September. From there, it finished at around 1.5% by the end of the year.
Meanwhile, zinc followed a contrasting trend, increasing from 1% in January to 3% in December. However, it saw a sharp decline by June, reaching -1%. Although there were some variations, zinc rose to 2% by the end of the year.