Yeah. Was thinking why is Greenland so high until I remembered Greenland doesn't even have 100k people in it, so any amount of homicides was gonna drag that number right up
But also, Greenland has a ton of social issues. They're been transitioning from hunter-gatherer (well, mostly hunter) to "modern life" way faster than people in europe or the US did, while still living on a giant block of ice.
After the danes loosened their grip on Greenland it got a highly developed state and has some of the best data collection anywhere. An interesting anecdote is that their healthcare system is free, but lacking in certain areas, statistics not being one of them. You probably only notice Greenland now, because it shows up as a part of the Americas.
It's a joke about how Greenland often appears on maps like this as "no data", along with extreme isolationist countries like North Korea and disputed areas like Western Sahara.
Greenland being "no data" is a running joke, like New Zealand not appearing on the map at all.