[Retric]

~1.5 billion or ~20% of the world’s population speak English. They also tend to be better off financially than the global average.

Written Chinese is a very large market and likely a good investment, though a significant percentage of the well off also speak English or Japanese.

After that it’s more questionable. Translation is not cheap, but US films are often translated for smaller markets.

[knolax]

Of those 1.5 Billion, how many speak it well enough to prefer to watch anime in it? I "speak" Spanish but I would never watch anime in Spanish because the cost of trying to comprehend translated Spanish is already too high for me to do it for casual entertainment.