Continuous items for most waves watching tv / reading papers / taking part in discussions on political issues / political knowledge / political participation / party preference / questions concerning importance of different political issues / left and right in politics. Wave 15: Perception of major problems / self-description on left, right scale / definition of left, right / agreement with politicians / values personal and as perceived of most people / characteristics, important for self versus for most people. Background variables: basic characteristics/ place of birth/ residence/ household characteristics/ occupation/employment/ income/capital assets/ education/ politics/ religion/ readership, mass media, and 'cultural' exposure/ organizational membership