OECD (2016), "Graph 1.4 - Impact of education, literacy proficiency and use of reading at work on wages: Percentage change in wages associated with a change of one standard deviation in years of education, proficiency in literacy and use of reading at work", in Skills Matter: Further Results from the Survey of Adult Skills, OECD Skills Studies, OECD Publishing, Paris, https://doi.org/10.1787/9789264258051-graph4-en.