Nigeria moved to 144th from 148th in Transparency International latest corruption perception index worldwide, that also saw the United States dropping four notches out of the top 20 countries in the world.
However, Nigeria made the four notch jump without improving its score of 27 out of a possible 100 as recorded in 2017.
Africa’s most populous country is tied with Kenya, Comoros, Guatemala and Mauritania. And it is ranked better than Cameroon put at 152nd.
Botswana remains Africa’s most transparent country with a ranking of 34, followed by Namibia, Mauritius and Senegal.
Denmark and New Zealand had the best scores on the Corruption Perceptions Index (CPI) again in 2018, scoring 88 and 87, while Somalia, Syria and South Sudan remained at the bottom, with scores of 10, 13 and 13, TI said.
Overall, more than two-thirds of countries scored below 50 on the 2018 index, and the average was 43, said TI, which has more than 100 chapters worldwide.
The group said only 20 countries had significantly improved their scores since 2012, including Argentina and Ivory Coast.
Sixteen others, including Australia, Chile and Malta, declined significantly in the same period.