The line graph illustrates the average monthly percentage changes in the prices of copper, nickel, and zinc over the course of 2014.
Overall, the graph highlights distinct trends among the three metals, with copper exhibiting a gradual decline followed by recovery, nickel demonstrating considerable volatility, and zinc maintaining relative stability throughout the year.
Initially, copper prices began at approximately 2% in January before experiencing a steady decline, reaching a low of -3% in July. Subsequently, there was a rebound, culminating in an increase to about 1% by December. Over the months, fluctuations included a noticeable dip to nearly 0% in April and minor alterations in October and November, where it hovered between 0% and 1%. In contrast, nickel started the year at an impressive 6%, peaking in May before undergoing significant fluctuations. After reaching a low of around -3% in June, the price of nickel rebounded slightly to -1% in July, then stabilized until September. A small drop occurred in October, but this was followed by a sharp rise to 1% in November, where it remained stable through December.
Regarding zinc, this metal commenced with a stable price of approximately 1% in January and experienced a moderate ascent to around 3% in February. However, it encountered a notable decrease to about -1% in June. After this trough, zinc prices showed resilience, fluctuating slightly near the zero mark for the subsequent months. A decline to -1% was recorded in October, followed by a significant resurgence to between 1% and 2% in November and December. Ultimately, zinc had the highest average monthly change of 2% by year-end, while nickel recorded the lowest at -3%, particularly during the crucial period from May to June when this dramatic decrease occurred.