Every industry that uses stats uses R. It's also becoming pretty widely taught in university courses (stats, biology, econ, finance, etc...). I know tons of non-programmers who use it as well, setting up a R environment is dirt simple (just install R Base + R Studio and you're all set).

I had the same thought. It's surprising to me that R is above JavaScript.

Currently doing some projects on the life sciences industry, most researchers I have met are using straight Excel, VB.NET when VBA macros aren't enough or R.