Comment on IQ world rank by country and which are the smartest nations by Abc Def.
This is not completely in line with what Lynn and Vanhanen have found. Their research is the most comprehensive and the only one that can be trusted. https://lesacreduprintemps19.files.wordpress.com/2012/08/intelligence-a-unifying-construct-for-the-social-sciences-richard-lynn-and-tatu-vanhanen.pdf
Here is a map that show the average iq distribution for Europe. According to Lynn and Vanhanen, inland is the Country with the highest IQ. Italy is downgraded to an IQ score of 96, which is due to large differences between the north and south parts of the country. The IQ in Croatia has rised considerably and is now 98. The score for Croatia is in line with recent student assesments (PISA, TIMSS).