Programmers are globally happy at work, but where are they the happiest?

It would seem that the smaller the company, the higher the percentage of “very happy”* developers. It’s also interesting to note that a relatively high percentage of developers who don’t work at a company (freelance developers for example) are also very happy in their work.

*Developers who answered 9 or 10 to the question “On a scale of 0 to 10, do you enjoy your current job?”