Politbarometer 2016 (Cumulated Data Set)
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The Politbarometer has been conducted since 1977 on an almost monthly basis by the Forschungsgruppe Wahlen on behalf of the Second German Television (ZDF). Since 1990, this...
政治晴雨表（Politbarometer）项目自1977年起便以近乎月度的频率开展调研，由瓦伦研究小组（Forschungsgruppe Wahlen）受德国第二电视台（ZDF）委托实施。自1990年起，该项目……
