Two referendums were held in Switzerland in 1968.Nohlen, D & Stöver, P (2010) Elections in Europe: A data handbook, p1919 The first was held on 18 February on a general tax amnesty, and was approved by 62% of voters. The second was held on 19 May on a tobacco tax, and was rejected by 52% of voters.
Results
February: General tax amnesty ChoicePopular voteCantonsVotes%FullHalfTotalFor400,90061.919622Against247,25538.1000Blank votes20,158––––Invalid votes2,089––––Total670,40210019622Registered voters/turnout1,603,76341.8–––Source: Nohlen & Stöver
May: Tobacco tax ChoiceVotes%For277,22948.2Against297,38151.8Blank votes17,815–Invalid votes833–Total593,258100Registered voters/turnout1,606,73136.9Source: Nohlen & Stöver
References