Roman Catholicism, which has a long history in Spain, remains the dominant religion. Although it no longer has official status by law, in all public schools in Spain students have to choose either a religion or ethics class. Catholicism is the religion most commonly taught, although the teaching of Islam, Judaism, and evangelical Christianity is also recognised in law. According to a 2020 study by the Spanish Centre for Sociological Research, about 61% of Spaniards self-identify as Catholics, 3% other faiths, and about 35% identify with no religion. Most Spaniards do not participate regularly in religious services. A 2019 study shows that of the Spaniards who identify themselves as religious, 62% hardly ever or never go to church, 16% go to church some times a year, 7% some time per month and 13% every Sunday or multiple times per week. Recent polls and surveys suggest that 20% to 27% of the Spanish population is irreligious.