Individuals with tertiary education are more likely to be employed than those with an upper secondary education who in turn have a greater chance of being employed than those without an upper secondary education (Figure 1.8). The proportion of the population that has attained at least upper secondary education grew from 56% for the generation aged 55-64 in 2011 to 88% for the generation aged 25-34 in the same year. Lower secondary education is now virtually universal and enrolment rates for 15 to 19 year olds grew from 64% in 1995 to 76% in 2011 (OECD, 2011b). Student learning outcomes in Chile, as measured by PISA, while still considerably below the OECD average, have remarkably improved over the past decade.