Not quite as much activity as Scala either. I think the good thing is that functional languages as a whole aren't going anywhere, it's just that the jobs for them are spread very thin over several languages.

I bet more people are getting paid to do Clojure work on production systems than Haskell or Emacs lisp.

That's a really nice web site. It took me a moment to realize it's showing quarterly data (sadly last updated in 2014), and that the ranking is based on the first metric ("number of active repositories").