Which Precious Metals Exchange-Traded Funds have the best one-year trailing returns?

I'm curious to know which Precious Metals Exchange-Traded Funds (ETFs) have been performing exceptionally well over the past year. Specifically, I'm interested in understanding which ones have the highest one-year trailing returns. Could you provide me with an overview of the top performers in this category, and perhaps offer some insights into what might be driving their success? Additionally, I'd be interested in hearing about any potential risks or factors that investors should consider before investing in these ETFs.