[Haskell-cafe] How many "Haskell Engineer I/II/III"s are there?

Although I'm fond of Haskell, in practice I am not a Haskell programmer -- I'm paid for Ruby and Bourne shell programming. Many of the jobs posted on this list end up being jobs for people who appreciate Haskell but will work in C# or O'Caml or some-such. I wonder how many people actually write Haskell, principally or exclusively, at work? -- Jason Dusek