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: The Prosperity Index methodology is reviewed each year and changes may be made to the placement of indicators, make-up of elements, and data sources used, in order to ensure it is as useful and relevant as possible. This means that the scores and rankings may have changed from what we reported in previous editions of the Prosperity Index.

Note: Hong Kong is a Special Administrative Region of China.