Source can be downloaded from the EU website: https://europa.eu/eurobarometer/api/deliverable/download/file?deliverableId=97983
It’s linked to on this page (near the bottom in the “infographics” section): https://europa.eu/eurobarometer/surveys/detail/3492
I think EU didn’t benefit my country on a lot of points. One big point though is the forces capitalism everywhere; like forcing to open energy selling to competition, leading to dismemberment of previously public sectors to the benefit of private company with absolutely 0 added value