Maintenance costs of private schools are covered from tuition fees paid by families. Primary schooling is brief, lasting 4 years rather than 6 years as is typical in OECD member countries (OECD, 2016b). The school year is short as well, lasting 160 days and 558 hours, as compared to 185 days of instruction with 799 hours of instruction, yielding a primary education of 2 234 hours, significantly fewer than in most OECD member countries. As in primary education, instructional hours per year are much lower than average (Table 3.5).