The Corruption Perceptions Index ranks countries and territories based on how corrupt their public sector is perceived to be, giving each both a score and rank.
The score indicates the perceived level of public sector corruption on a scale of 0 – 100, where 0 presents a country or territory as being perceived as highly corrupt and 100 means it is perceived as very clean. The 2012 score given to the United Kingdom is 74.
The rank indicates its position relative to the other countries and territories included in the index (a score of 1 being the best). This year's index includes 176 countries and territories, against which the United Kingdom is ranked as 17.