Four referendums were held in Switzerland in 1991.Nohlen, D & Stöver, P (2010) Elections in Europe: A data handbook, p1933 The first two were held on 3 March on lowering the voting age to 18, which was approved, and on a popular initiative on promoting public transport, which was rejected. The third and fourth were held on 2 June on reorganising the federal finances, which was rejected, and amending the military penal code, which was approved.
Results
March: Lowering the voting age to 18 ChoicePopular voteCantonsVotes%FullHalfTotalFor981,42572.720623Against367,64727.3000Blank votes9,794––––Invalid votes2,347––––Total1,361,21310020623Registered voters/turnout4,350,87931.3–––Source: Nohlen & Stöver
March: Promotion of public transport ChoicePopular voteCantonsVotes%FullHalfTotalFor496,60037.1111.5Against840,49462.919521.5Blank votes19,406––––Invalid votes2,514––––Total1,359,01410020623Registered voters/turnout4,350,87931.2–––Source: Nohlen & Stöver
June: Federal finances ChoicePopular voteCantonsVotes%FullHalfTotalFor664,31845.6212.5Against790,98854.418520.5Blank votes39,055––––Invalid votes2,480––––Total1,496,84110020623Registered voters/turnout4,499,04133.3–––Source: Nohlen & Stöver
June: Amendment to the military penal code ChoiceVotes%For817,45855.7Against650,65844.3Blank votes28,614–Invalid votes2,466–Total1,499,196100Registered voters/turnout4,499,04133.3Source: Nohlen & Stöver
References