Eurobarometer SpecialEurobarometer on Corruption 374 2011/2012SpecialEurobarometer on Corruption 497 2013/2014SpecialEurobarometer on Corruption 470 2017/2017Special Eurobarometer onCorruption 502 2019/2020SpecialEurobarometer 371 on Internal security Corruption Perception Index CPI 2019 CPI 2018 CPI 2017 CPI 2016 CPI2015 CPI 2014 CPI 2013 CPI 2012 CPI 2011 Bribe Payers Index BPI 2011 Global Corruption Barometer GCB 2015/2016GCB 2013