Average values for Web Vitals Metrics

[yiannisbot]

While editing the HOWTO guide for website owners, I'm realising that it's difficult to judge whether a website's performance is fast or slow compared to other sites. I think we discussed this before when preparing the gauge plot @dennis-tra , but how about adding the average values over all sites of the Web Vitals metrics we present here: https://probelab.io/websites/blog.ipfs.tech/#website-trend-metrics-blogipfstech ?

Is that possible/easy to do? Or do we think the plot will become too overloaded?