Rounding out the 10 highest scores : Finland and Sweden , 9.2 ; Canada , 8.9 ; Netherlands , 8.8 ; Australia and Switzerland , 8.7 ; and Norway , 8.6 . Least corrupt nations : Denmark , New Zealand and Singapore . Corruption Perception Index published annually by Transparency International . United States ranks No . 22 on the list of 178 nations ; economic rival China at No . 78 . Comment:
Least corrupt nations : Denmark , New Zealand and Singapore . Corruption Perception Index published annually by Transparency International . United States ranks No . 22 on the list of 178 nations ; economic rival China at No . 78 . Comment: