What does THIS MAP show?

What does THIS MAP show?

Here's a fun question for Wednesday... Hump Day.

In the map shown, the size of each country is proportional to a particular statistic. The colors on this map are irrelevant; they are only there to help you distinguish one country from another. What statistic does it represent?

Answer will be given on Thursday.

Updates
1 y
The correct answer is PIGS.

The size of each country is relative to the number of pigs in the country, China is #1.
What does THIS MAP show?
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