CSS is the most intriguing I think, why the sudden peak since 2013? I would have guessed that we're writing less and less CSS these days with tools like preprocessors and autoprefixers.
UPDATE: I'm assuming the ranking is based on the LOC number. Might be wrong since, sadly, there is no mention on how languages are ranked...
UPDATE: I'm assuming the ranking is based on the LOC number. Might be wrong since, sadly, there is no mention on how languages are ranked...