As on the occasion of the 20th and 25th anniversaries of Liechtenstein's EEA membership, a representative survey of Liechtenstein residents with Liechtenstein citizenship between the ages of 18 and 79 was conducted for the 30th anniversary. The survey was developed by the University of Liechtenstein in close cooperation with the Ministry of General Government Affairs and Finance, the EEA Coordination Unit, the Mission to the European Union, and the Office for Foreign Affairs.