according to the 2007 Corruption Perceptions Index.

Finland, Denmark and New Zealand share the top score of 9.4 in the 2007 Corruption Perceptions Index. The index looks at perceptions of public sector corruption in 180 countries and territories. 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.

Below are the top 20 countries, for the full list go to http://www.transparency.org/

country	country	2007 CPI	surveys	confidence range
rank		score	used
1	Denmark	9.4	6	9.2 - 9.6
1	Finland	9.4	6	9.2 - 9.6
1	New Zealand	9.4	6	9.2 - 9.6
4	Singapore	9.3	9	9.0 - 9.5
4	Sweden	9.3	6	9.1 - 9.4
6	Iceland	9.2	6	8.3 - 9.6
7	Netherlands	9	6	8.8 - 9.2
7	Switzerland	9	6	8.8 - 9.2
9	Canada	8.7	6	8.3 - 9.1
9	Norway	8.7	6	8.0 - 9.2
11	Australia	8.6	8	8.1 - 9.0
12	Luxembourg	8.4	5	7.7 - 8.7
12	United Kingdom	8.4	6	7.9 - 8.9
14	Hong Kong	8.3	8	7.6 - 8.8
15	Austria	8.1	6	7.5 - 8.7
16	Germany	7.8	6	7.3 - 8.4
17	Ireland	7.5	6	7.3 - 7.7
17	Japan	7.5	8	7.1 - 8.0
19	France	7.3	6	6.9 - 7.8
20	USA	7.2	8	6.5 - 7.6

* CPI Score relates to perceptions of the degree of corruption as seen by business people and country analysts, and ranges between 10 (highly clean) and 0 (highly corrupt).

** Confidence range provides a range of possible values of the CPI score. This reflects how a country's score may vary, depending on measurement precision. Nominally, with 5 percent probability the score is above this range and with another 5 percent it is below. However, particularly when only few sources are available, an unbiased estimate of the mean coverage probability is lower than the nominal value of 90%.

*** Surveys used refers to the number of surveys that assessed a country's performance. 14 surveys and expert assessments were used and at least 3 were required for a country to be included in the CPI.