The 2007 Corruption Perceptions Index looks at perceptions of public sector corruption in 180 countries and territories, and is a composite index that draws on 14 expert opinion surveys. It scores countries on a scale from zero to ten, with zero indicating high levels of perceived corruption and ten indicating low levels of perceived corruption.
A strong correlation between corruption and poverty continues to be evident. Forty percent of those scoring below three, indicating that corruption is perceived as rampant, are classified by the World Bank as low income countries. Somalia and Myanmar share the lowest score of 1.4, while Denmark has edged up to share the top score of 9.4 with perennial high-flyers Finland and New Zealand.