 According to the 2018 Scottish Household survey, since 2009, there has been an increase in the proportion of adults reporting not belonging to a religion, furthermore 22% of the Scottish population in 2018 (down from 34% in 2009) reported belonging to the Church of Scotland, 14% (marginally down from 15% in 2009) reported belonging to the Catholic Church.Other religions have established a presence in Scotland, mainly through immigration and higher birth rates among ethnic minorities.Those with the most adherents in the 2011 census are Islam (1.4%), Hinduism (0.3%), Buddhism (0.2%) and Sikhism (0.2%).