The questionnaires of barometric surveys can indirectly highlight the changes in societies as questionnaires are witnesses of what is considered important to measure at one moment of time. After briefly recalling the origins of the survey, the first part is devoted to the first wave of the survey, which included a number of very innovative questions. The second part discusses the evolution of the questionnaire, which is closely linked to the evolution of European societies, the rise of new concerns on the political agenda but also the strategies of academics managing the survey.