Primary and secondary schooling is compulsory for children aged 6 to 16, with the majority attending from the age of 5. There are 13 school years and attending public schools is free. New Zealand has an adult literacy rate of 99 percent, and over half of the population aged 15 to 29 hold a tertiary qualification. There are five types of government-owned tertiary institutions: universities, colleges of education, polytechnics, specialist colleges, and wānanga, in addition to private training establishments. In the adult population 14.2 percent have a bachelor's degree or higher, 30.4 percent have some form of secondary qualification as their highest qualification and 22.4 percent have no formal qualification. The OECD's Programme for International Student Assessment ranks New Zealand's education system as the 7th best in the world, with students performing exceptionally well in reading, mathematics and science.
Christianity is the predominant religion in New Zealand, although its society is among the most secular in the world. In the 2006 Census, 55.6 percent of the population identified themselves as Christians, while another 34.7 percent indicated that they had no religion (up from 29.6 percent in 2001) and around 4 percent affiliated with other religions. The main Christian denominations are Anglicanism, Roman Catholicism, Presbyterianism and Methodism. There are also significant numbers of Christians who identify themselves with Pentecostal, Baptist, and Latter-day Saint churches and the New Zealand-based Ratana church has adherents among Māori. According to census figures, other significant minority religions include Hinduism, Buddhism, and Islam
