The provided line graph depicts the monthly percentage change in prices of copper, nickel, and zinc throughout the year 2014.
Overall, there was a declining trend in the prices of the three metals over the course of the year. It is notable that copper exhibited a consistent pricing pattern throughout the entire year.
Nickel’s price fluctuated significantly, starting at approximately -0.8% in January and dropping sharply to -2.8% in February. The price then experienced a notable peak of 5.8% in May, followed by a gradual decline and reaching a low point of about -3% in June. In July, there was a minimal recovery to about -2%, which remained stable until September. In October, there was a slight decrease of about -2%, followed by a marginal increase to 1% in November, maintaining this level by the end of the year.
Likewise, Zinc experienced a similar trend, starting at around -0.5% in January, declining to approximately -1.8% in February, and stabilizing at this level until July. There was a notable peak of around 3.2% in July, followed by fluctuations between -1% and 2% until November, with a slight increase to about 2.2% by December. In contrast, the price of copper displayed some variations but remained relatively constant over the twelve-month period.