Answer:
HDI refers to Human Development Index and it’s a measure of the key elements and areas of how citizens of the country develop. These can be measured through their average income, health care etc.
China- 0.761 85th
USA - 0.926 17th
Japan- 0.919 19th
UK- 0.932 13th
Saudi Arabia- 0.854 40th
Iraq- 0.674 123rd