Note: The terms ‘country’ and ‘nation’ are used to refer to the 167 territories included in the Index.

Note on data: From 2011 data for Sudan excludes data for South Sudan, which became a separate country in that year.

Note on methodology: This year the Prosperity Index has been revised and improved following a year-long methodological review, to make it much more policy-focused. This means that the scores and rankings have changed from what we reported in previous editions of the Prosperity Index.