"Countries with similar characteristics that remained outside the EU" is quite unclear. It this implies countries in the region that could potentially join the

"Countries with similar characteristics that remained outside the EU" is quite unclear. It this implies countries in the region that could potentially join the list is now so limited and skewed towards what I would call "problem countries" that there are probably a massive bias to take into account. And that includes countries from other regions then it seems like a highly subjective comparison. By population, the countries most similar to Poland are Ukraine, Morocco, and Uzbekistan... So, yes, Poland has done better than all of them. And?