Is seems that the answer is 25% although the sources of this information, two websites - Yahoo and the other Catster - are not the greatest sources for what I would call scientific information. We really need hard science on this subject.
|Sasha - flame pointed Birman? See tabby M mark on forehead|
Photo by Alan
However, there is very little information about the prevalence of any type of domestic cat coat. You will see searches on the Internet for percentages of black cats and white cats for example but no real answers from scientists. I guess the scientists aren't interested in the same sort of things that people are interested in!
If you click on the link above you will be able to read a bit more about this subject.