- 1 in 12 people have some sort of color deficiency. About 8% of men and 0.4% of women in the US.
- 0.38% of women are deuteranomalous (around 95% of all color deficient women).
- 0.005% of the population are totally colour blind.
- 0.003% of the population have tritanopia.
- Protanomaly occurs in about 1% of males.
- Deuteranomaly occurs in about 5% of males. It's the most common color deficiency.
- Protanopia occurs in about 1% of males.
- Deuteranopia occurs in about 1% of males.