Commenting on the results released by the Berlin-based NGO on Wednesday, secretary-general of Transparency International (TI) Slovenia Vid Doria said that despite the seeming effort for more transparency in the public and state administration, there was not enough political will to implement it in practice.

He said that the improvement in score this year was mainly a result of an improved assessment among business people. Yet Slovenia is still far from the 61 points it scored in 2012, which Doria said meant "we are still far from established integrity principles".

With only minimum progress, the score remains bad and should serve as an indication to the government that effective mechanisms are needed to prevent corruption and other risks, especially in the field of public procurement, management of state assets and of state companies.

Doria also pointed to some positive steps, which are not yet detected in this year's index, such as an expanded scope of the freedom of information act, slightly more transparent financing of political parties and election campaigns and the fact that the government and most MPs signed a commitment to enforce integrity and transparency principles in practice.

But he also called for further measures, including self-regulation of political parties, also in parliament, which Doria said should commit to fighting corruption also by adopting an ethics code.

The key measure in the efforts to improve the situation is increasing the transparency of legislative procedure by establishing comprehensive legislative tracking that would let every citizen know who participated in the crafting and adoption of laws.

Doria also said that certain groups in state institutions did not want the public to get insight into their work, pointing to opaque operations of the Bank Asset Management Company and calling for more transparency at the Slovenia Sovereign Holding.

The Commission for the Prevention of Corruption said there was "no reason to celebrate", as it had detected no improvements yet.

"Corruption and failure by key politicians and businessmen to take responsibility for their actions remain one of the main obstacles to the achievement of a better result," the commission said in a press release.

The Corruption Perceptions Index is topped by Denmark with the score of 92 points, followed by New Zealand, Finland, Norway and Switzerland. The lowest scored countries are Somalia and North Korea at eight points, trailing Sudan, Afghanistan and South Sudan.