Countries Farthest from Each Other

This is my first usage of an interestingly calculated Country Distance Matrix that I've formulated. If this sounds interesting to you, I'll pass it on / ask for help consolidating more data.

P.S. I chose Nauru as the last source because a lot of countries had it listed as farthest from them. Although part of that is due to other Pacific Islands not being included in the source data (so I didn't want e.g. Australia listed when it should be Tuvalu etc.), it also seems to suggest Nauru is "isolated from the most countries", if not simply "the most isolated country" on the planet.