I'm working on adding 1 to that total, but was a bit lazy today and ran a translate on your post - sorry.
I think the "question" can influence this - in particular, how do you define "Welsh Speaker"? Is it binary (not at all and fluent being the only options) or is some gradation factored in? (learners and those of us with some basics allowed some "credit")?
#dysgucymraeg