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Nice visualization.

From an economic point of view, you'll generally find educational value in looking at consumption vs. production.

In this case, countries use oil largely for energy and nationally, energy serves both lifestyle and commerce. On the lifestyle front, you'd expect to see that (a) more people leads to more energy use, and (b) that more developed countries use more oil per person (heating, cooling, lighting, etc.) Further, businesses use energy as an input in commercial activities. From this we'd expect to see that the more manufacturing, construction, shipping, etc., done in a country the more energy it will require.

One way to approach this with summary statistics is to compare energy use to gross domestic product or if available, gross measures of industry excluding "office-work" businesses. This comparison would implicitly include population as well, though disproportionately since highly developed countries have a greater number of persons active in commerce while less-developed countries have a greater number in agriculture.

In any case, it would be nice to see oil vs. GDP so that we can see what countries are efficient economic engines and which are not.

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That is a good idea. I'll do the GDP next. I was trying to think of a good way to combine them but at the moment I can only think of showing them side by side. Maybe I'll do population too.

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