Gender pay gap, 2017. Romania: 1.55% Costa Rica: 2.97% Luxembourg: 3.4% Belgium: 3.7% Bulgaria: 4.06% Greece: 4.4% Slovenia: 5% Italy: 5.5% Denmark: 5.7% Turkey: 6.8% Norway: 7.1% New Zealand: 7.1% (OECD) Longer list