Stack Overflow Developer Survey 2016 Results
stackoverflow.com/research/developer-survey-2016#overview
From the page
Saved with the link. Notes from 2007 to 2016 are mostly the page's own words, so this is probably an excerpt.
This year, over fifty thousand developers shared where they work, what they build, and who they are. You are about to read the results of the most comprehensive developer survey ever conducted.