''The Guardian'' reported in 2015 that merely a one-third of European countries are ruled by center-left governments.<ref>[https://www.theguardian.com/world/datablog/2015/jun/22/third-eu-governed-by-centre-left-data Only a third of the EU is governed by the centre-left], The Guardian, 2015</ref> | ''The Guardian'' reported in 2015 that merely a one-third of European countries are ruled by center-left governments.<ref>[https://www.theguardian.com/world/datablog/2015/jun/22/third-eu-governed-by-centre-left-data Only a third of the EU is governed by the centre-left], The Guardian, 2015</ref> |