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% of world population with colour-blindness:
Deuteranomaly (green-weak) 4.6%
Deuteranopia (green-blind) 1.3%
Protoanomaly (red-weak) 1%
Protanopia (red-blind) 1%
Tritanopia (blue-blind) ~rare
This condition affects 1 in 12 men, 1 in 200 women, so more than 350m worldwide. 1 in 22 people.
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Elmo