Christianity is the largest religion in Norway. Norway has historically been called a Christian country. A majority of the population are members of the Church of Norway with 76.1% of the population officially belonging to the Evangelical Lutheran Church of Norway in 2013. At numerous times in history, Norway sent more missionaries per capita than any other country. This changed considerably from the 1960s. In 2004, only 12% of the population attended church services each month. Citizens born in Norway to one or two Norwegian parents are automatically added to the list of Protestant Christians in Norway, and are required to "sign out" of the church. There are two categories kept in the church's books, "medlemmer" (members) and "tilhørige" (belonging to [the State church]). Members technica