What is Switzerland's direct democracy about?

  National ballots in Switzerland from 1848 until 2016, for selected themes and by 10 years brackets.

 = a referendum (mandatory or optional) with a majority 'no' vote,  = a rejected people's initative,  = a referendum with a majority 'yes' vote,  = an accepted people's initiative
Source: Centre for Research on Direct Democracy (c2d) | Code: Highcharter | @duc_qn | swissinfo.ch