Human Development
Last updated: 10 November 2026
UNDP Human Development Index
This ranki.gg Rank it uses one measure: Human Development Index, in HDI (0–1), 2023. The countries on the card are Iceland, Hong Kong, United Arab Emirates, United States, China, Nigeria. You do not have to recall the numbers from memory. They sit in a column. The job is to match each country to the value that belongs to it, then lock the order in. Five tries. A card in the right spot locks. A card in the wrong spot turns red so you can move it.
The United Arab Emirates (0.940) edges the United States (0.938). The UAE rose 27 places since 2015, and its index grew 1.04% a year from 2010 to 2023, against 0.10% a year in the United States. Hong Kong (0.955) ranks 8th of 193.
The countries on the card
| # | Country | HDI (0–1) |
|---|---|---|
| 1 | Iceland | 0.972 |
| 2 | Hong Kong | 0.955 |
| 3 | United Arab Emirates | 0.94 |
| 4 | United States | 0.938 |
| 5 | China | 0.797 |
| 6 | Nigeria | 0.56 |
Iceland leads this table at 0.972 HDI (0–1). After that: Hong Kong at 0.955 (0.017 HDI (0–1) under Iceland); United Arab Emirates at 0.94 (0.015 HDI (0–1) under Hong Kong); United States at 0.938 (0.002 HDI (0–1) under United Arab Emirates); China at 0.797 (0.141 HDI (0–1) under United States); Nigeria at 0.56 (0.237 HDI (0–1) under China). Iceland is 1.736 times Nigeria. That multiple is the top row divided by the bottom row of this same table. In the wider list of 193 stored on the puzzle, Iceland is number 1, Hong Kong is number 8, United Arab Emirates is number 15, United States is number 17, China is number 78, Nigeria is number 164.
The fact is the surprise on this card: the United Arab Emirates at 0.940 edges the United States at 0.938. It also says the UAE rose 27 places since 2015, and that its index grew 1.04 percent a year from 2010 to 2023, against 0.10 percent a year in the United States. Hong Kong at 0.955 is described as 8th of 193. Iceland leads this six. Nigeria is the low end. The index is the UNDP Human Development Report 2025 figure for 2023, on a 0 to 1 scale.
The source line on the puzzle is: UNDP Human Development Report 2025. The puzzle does not add a separate caveat beyond that source line and the fact above. ranki.gg does not invent a value that is missing from that source. If two countries were so close that the order would depend on rounding, they would not be the pair the card asks you to separate.
When you finish the puzzle, the answer screen repeats the order, the fact, and a link to the source. That link is the same URL cited here: https://hdr.undp.org/content/human-development-report-2025.