Transparency International released their Corruption Perceptions Index 2017 on 22 February 2018. Whilst historical trends in CPI index scores for 2012-2017 for each country are also presented, the 2012-2017 historical scores have not been separately presented on a regional basis to allow a quick comparison of country corruption scores within each of the six regions used in the analysis (Americas, Asia Pacific, Eastern Europe & Central Asia, MENA, Sub-Saharan Africa and Western Europe).
We have reorganised the spreadsheet provided by Transparency International to provide a listing of the reported historical trends in index scores for 2012-2017 for countries in each of the six regions. Our spreadsheet is available here.
