Band 6+: The chart represents the average monthly change in the prices of 3 mentals in the year 2014, and the 3 elements are separately copper, nickel and zinc.

The provided line graph displays the percentage changes for pricing rates over a span of year 2014, broken down by months.

All items shown are non-ferrous metals that make up German silver alloy, namely copper, nickel, and zinc. Overall, nickel experienced a remarkable decrease, while other metals cycled in value throughout the year, regaining their initial positions towards the end of the period.

Looking at the broader trend, all three metals showed general growth throughout 2014. Despite considerable fluctuations during the twelve-month period, the average increase across all metals remained around 1%, indicating steady growth in the sector. Each metal commenced January with positive percentage changes, and concluded December at similarly positive levels.

The most significant feature was a pronounced mid-year decline. Beginning in June, all three metals fell below the 0% threshold, marking a period of suppressed prices. However, copper recovered faster, returning to approximately 1% growth rate by August. In contrast, zinc and nickel remained in negative territory until October, with nickel experiencing the most severe downturn, reaching the lowest point of -3% before its eventual recovery in the final quarter.