the historical development of naturalization from selected countries. Immigration Foreign population by country of citizenship as of 2020: Emigration In 2004, 623,100 Swiss citizens (8.9%) lived abroad, the largest group in France (166,200), followed by the United States (71,400) and Germany (70,500). Employment and income Unemployment, youth ages 15–24 total: 8.1%. Country comparison to the world: 138th male: 8.1% female: 8% (2017 est.) Average hourly income 23.14 CHF Religion Switzerland as a federal state has no state religion, though most of the cantons (except for Geneva and Neuchâtel) recognize official churches (Landeskirchen), in all cases including the Roman Catholic Church and the Swiss Reformed Church. These churches, and in some cantons also the Old Catholic Church and Jewish congregations, are financed by official taxation of adherents. In 2000, 5.78 million residents (79.2%, compared to 93.8% in 1980) were Christian (Roman Catholic 41.8%, Protestant 35.3%, Orthodox 1.8%). 809,800 (11.1%, compared to 3.8% in 1980) were without any religious affiliation. 310,800 (4.3%) were Muslim (compared to 0.9% in 1980), 17,900 (0.2%) were Jewish. The 2005 Eurobarometer poll found 48% of Swiss residents to be theist, 39% expressing belief in "some sort of spirit or life force", 9% atheist and 4% said that they "don't know". Adherence to Christian churches has declined considerably since the late 20th century, from close to 94% in 1980 to about 67% as of 2016. Furthermore, notable is the significant difference in church adherence between Swiss citizens (72%) and foreign nationals (51%) in 2016. The Federal Statistical Office reported the religious demographics as of 2016 as follows (based on the resident population age 15 years and older): 66.9% Christian (including 36.5% Roman Catholic, 24.5% Reformed, 5.9% other), 24.9% unaffiliated, 5.2% Muslim, 0.3% Jewish, 1.4% other religions. (100%: 6,981,381, registered resident population age 15 years and older). From the same 2016 survey, of 15 to 24 year olds 65.4% were Christian (36.3% Roman Catholic, 22.6% Reformed, 6.6% other), 23.0% unaffiliated, 0.3% Jewish, 8.3% Muslim, 1.7% other religions. Those aged 25 to 44 were 58.4% Christian (33.1% Roman Catholic, 18.7% Reformed, 6.7% other), 31.0% unaffiliated, 0.2% Jewish, 7.5% Muslim, 1.7% other religions. Older adults (45 to 64 years old) were 67.0% Christian (37.7% Roman Catholic, 23.9% Reformed, 5.5% other), 25.9% unaffiliated, 0.2% Jewish, 4.2% Muslim, 1.5% other religions. Senior citizens (over 65) were 81.3% Christian (40.3% Roman Catholic, 36.2% Reformed, 4.8% other), 14.9% unaffiliated, 0.3% Jewish, 1.1% Muslim, 0.5% other