Switzerland has no official state religion, though most of the cantons (except Geneva and Neuchâtel) recognise official churches, which are either the Roman Catholic Church or 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.Christianity is the predominant religion of Switzerland (about 68% of resident population in 2016 and 75% of Swiss citizens), divided between the Roman Catholic Church (37.2% of the population), the Swiss Reformed Church (25.0%), further Protestant churches (2.2%), Eastern Orthodoxy (around 2%), and other Christian denominations (1.3%). Immigration has established Islam (5.1%) as a sizeable minority religion.24% of Swiss permanent residents are not affiliated with any church (Atheism, Agnosticism, and others).As of the 2000 census other Christian minority communities included Neo-Pietism (0.44%), Pentecostalism (0.28%, mostly incorporated in the Schweizer Pfingstmission), Methodism (0.13%), the New Apostolic Church (0.45%), Jehovah's Witnesses (0.28%), other Protestant denominations (0.20%), the Old Catholic Church (0.18%), other Christian denominations (0.20%). Non-Christian religions are Hinduism (0.38%), Buddhism (0.29%), Judaism (0.25%) and others (0.11%); 4.3% did not make a statement.The country was historically about evenly balanced between Catholic and Protestant, with a complex patchwork of majorities over most of the country. Switzerland played an exceptional role during the Reformation as it became home to many reformers. Geneva converted to Protestantism in 1536, just before John Calvin arrived there. In 1541, he founded the Republic of Geneva on his own ideals. It became known internationally as the Protestant Rome, and housed such reformers as Theodore Beza, William Farel or Pierre Viret. Zürich became another stronghold around the same time, with Huldrych Zwingli and Heinrich Bullinger taking the lead there. Anabaptists Felix Manz and Conrad Grebel also operated there. They were later joined by the fleeing Peter Martyr Vermigli and Hans Denck. Other centres included Basel (Andreas Karlstadt and Johannes Oecolampadius), Berne (Berchtold Haller and Niklaus Manuel), and St. Gallen (Joachim Vadian). One canton, Appenzell, was officially divided into Catholic and Protestant sections in 1597. The larger cities and their cantons (Bern, Geneva, Lausanne, Zürich and Basel) used to be predominantly Protestant. Central Switzerland, the Valais, the Ticino, Appenzell Innerrhodes, the Jura, and Fribourg are traditionally Catholic. The Swiss Constitution of 1848, under the recent impression of the clashes of Catholic vs. Protestant cantons that culminated in the Sonderbundskrieg, consciously defines a consociational state, allowing the peaceful co-existence of Catholics and Protestants. A 1980 initiative calling for the complete separation of church and state was rejected by 78.9% of the voters. Some traditionally Protestant cantons and cities nowadays have a slight Catholic majority, not because they were growing in members, quite the contrary, but only because since about 1970 a steadily growing minority became not affiliated with any church or other religious body (21.4% in Switzerland, 2012) especially in traditionally Protestant regions, such as Basel-City (42%), canton of Neuchâtel (38%), canton of Geneva (35%), canton of Vaud (26%), or Zürich city (city: >25%; canton: 23%).

Question: At what rate was the 1980 proposal of relgious separation between church and state rejected?
Answer: 78.9%