How rare is it for a girl to be colorblind?

Colour blindness:

1. Colour blindness is a vision deficiency in which the person loses his/her ability to perceive and differentiate colors.
2. It is an X-linked recessive hereditary disease that results in improper photopigment formation.
3. Since males contain only one X-chromosome, their chances of inheriting the disease are higher.
4. It is a very rare condition in females and only one in 200 females inherit this condition.