For reference, that's a fairly average value for Europe at the moment. Not sure why the UK is being singled out. https://i.redd.it/8hbhiqhowjpa1.png
I'm curious why the values aren't identical to within rounding errors for countries like the Netherlands and Belgium which are nearly the same size, in essentially the same location, and don't have different amounts of welfare like north/south Korea or USA/MX. Can't be that one has tech or purchasing power that the other doesn't, or that food needs to travel a lot further, and I would also not expect vastly different…
Or, in a word, Brexit.
Everywhere is getting inflation. Supply chain disruption, Ukraine war and a dash of climate change (hasn't really bitten yet compared to the other two). Britain seems to be getting about 5% more than everywhere else.