The Programme for International Student Assessment (PISA) coordinated by the OECD ranks the knowledge and skills of Japanese 15-year-olds as the third best in the world. Japan is one of the top-performing OECD countries in reading literacy, math and sciences with the average student scoring 529 and has one of the world's highest-educated labor forces among OECD countries. , Japan's public spending on education amounted to just 3.3 percent of its GDP, below the OECD average of 4.9 percent. In 2017, the country ranked third for the percentage of 25- to 64-year-olds that have attained tertiary education with 51 percent. Approximately 60 percent of Japanese aged 25 to 34 have some form of tertiary education qualification, and bachelor's degrees are held by 30.4 percent of Japanese aged 25 to 64, the second most in the OECD after South Korea.