second largest religious group in Thailand, comprising 5.4% of the population in 2018. Islam is concentrated mostly in the country's southernmost provinces: Pattani, Yala, Satun, Narathiwat, and part of Songkhla Chumphon, which are predominantly Malay, most of whom are Sunni Muslims. Christians represented 1.13% (2018) of the population in 2018, with the remaining population consisting of Hindus and Sikhs, who live mostly in the country's cities. There is also a small but historically significant Jewish community in Thailand dating back to the 17th century. The constitution does not name official state religion, and provides for freedom of religion. Even the authority formally does not register new religious groups that have not been accepted and limit the number of missionaries, unregistered religious organisations as well as missionaries who are allowed to operate freely. There have been no widespread reports of societal abuses or discrimination based on religious belief or practice. Thai law officially recognizes five religious groups: Buddhists, Muslims, Brahmin-Hindus, Sikhs, and Christians. However, some laws are inspired from Buddhist practices, such as banning alcohol sales on religious holidays. Education Thailand's youth literacy rate was 98.1% in 2015. Education is provided by a well-organised school system of kindergartens, primary, lower secondary and upper secondary schools, numerous vocational colleges, and universities. Education is compulsory up to and including age 14, while the government is mandated to provide free education through to age 17. The establishment of reliable and coherent curricula for its primary and secondary schools is subject to rapid changes. Issues concerning university entrance has been in constant upheaval for a number of years. The country is also one of the few that still mandates uniform up to the university years, which is still a subject of ongoing debate. The quality of providing education in the country is often questioned. In 2013, the Ministry of Information and Communication Technology announced that 27,231 schools would receive classroom-level access to high-speed internet. However, the country's educational infrastructure was still underprepared for online teaching, as smaller and more remote schools were particularly hindered by COVID-19 restrictions. The number of higher education institutions in Thailand has grown strongly over the past decades to 156 officially. The two top-ranking universities in Thailand are Chulalongkorn University and Mahidol University. Thai universities' research output is still relatively low, even though the country's journal publications increased by 20% between 2011 and 2016. Recent initiatives, such as the National Research