This is crucial since their institutions play a significant role in preventing corruption from flourishing globally , '' said Cobus de Swardt , managing director of the Berlin-based corruption watchdog . China dropped five places to 80th place out of 180 nations in the Corruption Perceptions Index . Denmark , Finland , New Zealand , Norway and Singapore topped the list as the cleanest countries . Somalia , South Korea , Afghanistan , Sudan and Myanmar ranked at the bottom . The United States was ranked 19th in the list , below Japan and the UK .
China dropped five places to 80th place out of 180 nations in the Corruption Perceptions Index . Denmark , Finland , New Zealand , Norway and Singapore topped the list as the cleanest countries . Somalia , South Korea , Afghanistan , Sudan and Myanmar ranked at the bottom . The United States was ranked 19th in the list , below Japan and the UK .