Transparency International reported that Thailand's reputation for transparency among business executives improved somewhat during the years of the Thaksin government. In 2001, Thailand's Corruption Perceptions Index(CPI) was 3.2 , whilst in 2005, the CPI was 3.8 .However, a study of Worldwide Governance Indicators by the World Bank gave Thailand a lower score on Control of Corruption during 2002–2005 under Thaksin when compared to the Democrat-led government of 1998–2000. In 2008 Thaksin Shinawatra was sentenced to two years' imprisonment in absentia over a corrupt land deal. In a ruling that made him the first Thai politician to be convicted of corruption committed while prime minister, Thaksin was found to have violated conflict of interest rules in helping his wife buy land from a state agency at a reduced price.