The scores' average are positions assigned by europeelects.eu that are based on 2019 Chapel Hill Expert Survey. Europe Elects presents 2 compasses, one with Libertarian/Postmaterialist - Traditional/Authoritarian and State-controlled - Market economy axes, and the other with Anti-EU Integration - Pro-EU Integration and Left - Right axes. I used the 2 positions from the first compass and the EU integration axis from the second, as the Left-Right axis is usually an "interpretation" of the first compass so it's redundant. Using the 3 positions, I calculated which EU party has the highest average, where 10/10 would mean the party has 10/10 scores in being the most libertarian, the most pro-state-controlled economy and the most pro-EU integration.

Why? Because looking at the data at Europe Elects, I noticed that no other Lib-Left party has such high Pro-EU position as Polish Lewica Razem, and no other Auth-Right party has such low Pro-EU position as Polish Konfederacja. I wanted to check if that's true, and it indeed is.