The ranking was contained in a Corruption Perception Index (CPI) 2020 report published by Transparency International.
Corruption Perception Index (CPI) is a survey report annually published by Berlin-based Transparency International since 1995. It ranks countries by their perceived levels of public sector corruption, as determined by expert assessments and opinion surveys.
In the latest report, Nigeria occupies the 149th position out of the 180 countries surveyed, scoring 25 out of 100 points. The CPI scales zero (0) to 100 – zero means “Highly Corrupt,” while 100 stands for “Very Clean”.
In 2019, the country stood at 146th out of the 180 countries surveyed, scoring 26 points out of 100 points. Nigeria’s ranking on the corruption perception index has continued to drop in the last four years.
With the current ranking, Nigeria dropped two steps worse off than she was in 2018 when she scored 27 points to place 144th out of 180 countries. Only 12 countries are perceived to be more corrupt than Nigeria in the whole of Africa. The countries are the Democratic Republic of Congo, Libya, Equatorial Guinea, Sudan, Somalia, Zimbabwe, Chad, Eritrea, Burundi, Congo, Guinea Bissau, and South Sudan.
Somalia and South Sudan remain the most corrupt nations on earth, according to the CPI 2020 ranking, while Denmark, New Zealand, Finland, Singapore, Germany, Sweden Switzerland, Norway, The Netherlands and Luxembourg are the least corrupt countries in the world.