Norway, Switzerland, Australia, Ireland and Germany lead the ranking of 189 countries and territories in the latest rankings, while Niger, the Central African Republic, South Sudan, Chad and Burundi have the lowest scores.
The overall trend globally is toward continued human development improvements, with many countries moving up through the human development categories: out of the 189 countries for which the HDI is calculated, 59 countries are today in the very high human development group and only 38 countries fall in the low HDI group.
Just eight years ago in 2010, the figures were 46 and 49 countries respectively.
Ireland enjoyed the highest increase in HDI rank between 2012 and 2017 moving up 13 places, while Turkey, the Dominican Republic and Botswana were also developing strongly, each moving up eight places.
All three steepest declines in human development ranking were countries in conflict: the Syrian Arab Republic had the largest decrease in HDI rank, falling 27 places, followed by Libya (26 places), and Yemen (20 places).
Movements in the HDI are driven by changes in health, education and income.
Health has improved considerably as shown by life expectancy at birth which has increased by almost seven years globally, with Sub-Saharan Africa and South Asia showing the greatest progress, each experiencing increases of about 11 years since 1990.