I’ve to debate the graph linked beneath. It’s a Producer Value Index by Commodity: Farm Merchandise: Eggs for Contemporary Use. My essential query is what is strictly the Y axis is? It’s labeled “Index Dec 1991=100”, I’ve tried trying into it however can not seem to discover a easy rationalization. Additionally is that this graph adjusted for inflation? Lastly it says it isn’t seasonally adjusted, what does this imply and what have an effect on wouldn’t it have on the graph if any?

https://fred.stlouisfed.org/collection/WPU017107#0

Thanks for the assistance! Wanting ahead to studying extra about commodities on this neighborhood!