Australia has ranked 13th in the world in the 2015 Information, Communication and Technology ("ICT") Development Index, placing above countries like Germany, the United States and Singapore. Australia has improved on its 2010 ranking of 15th and is now the 4th highest ranked country in the Asia Pacific region behind the Republic of Korea (1st), Hong Kong (9th) and Japan (11th). This Development Index is conducted by the ITU, a specialised United Nations agency for information and communication technologies, which ranks member states on their ICT access, use and skills. Indicators such as fixed telephone subscriptions, the number of broadband subscriptions and the tertiary gross enrolment ratio, are taken into account to determine a country's progress in developing access, use, and skills for information and communication technologies. In particular, from 2010 to 2015, Australia has improved on its ICT skills ranking, moving from 9th to 6th in the world, and has ranked particularly highly for its affordability of hand-set based post-paid mobile broadband.