The ICT Development Index (IDI), which has been published annually since 2009, is a composite index that combines 11 indicators into one benchmark measure. It is used to monitor and compare developments in information and communication technology (ICT) between countries and over time.

This dataset only contains the data for the years 2010 and 2015 as the ITU-D makes those available here: http://www.itu.int/net4/ITU-D/idi/2015/index.html

The 2015 report (PDF) is attached to this dataset and is also available direct from the ITU: http://www.itu.int/en/ITU-D/Statistics/Pages/publications/mis2015.aspx

The full methodology behind the report is here: http://www.itu.int/en/ITU-D/Statistics/Pages/publications/mis2015/methodology.aspx