The number of Icelanders registered as members of the National Church has gone down in the last twelve months, while there has been an increase in followers of Ethical Humanism, Ásatrú, and Islam. This according to the most recent data Icelanders’ religious affiliation, which was recently released by the country’s national register. Iceland’s National (Lutheran) Church has seen a decrease in membership of just around 1%, or 2,419 people. The highest increases have been for the Catholic church (up by 512 registrants; an increase of 3.8%) and The Icelandic Ethical Humanist Association (up by 536, or 23.5%). Around 400 people officially joined Ásatrú, a Norse pagan religion, which is an increase of 9.9%. The largest increase was among registered Muslims in Iceland. This year, there was an 122.1% increase, or 105 newly registered members, for a total of 191. The largest decrease was seen among followers of Zuism, an ancient Sumerian religion, which went down by 306 members, or 15.8%. There was also an overall increase among those who wanted to officially register as unaffiliated with any religious or philosophical organization. There was an increase of 2,221 people in this category, or 9.9%.