StackOverflow Technology Survey 2017

StackOverflow released a comprehansive survey about programming technologies :

Here are some interesting parts:

Most numbers express the rate of programmers that use a certain technology.

Programming languages :

•     Usage :
• Scala : 0.036
• Haskell : 0.018
• Want to use it more than any other language :
• Scala : 0.065
• Haskell : 0.054
• So Scala is wanted 2*, Haskell is wanted 3* more than are used. The same multiplier for Java and C# is about 0.4. So {Scala, Haskell} are about 6* more popular compared to {Java, C#} when popularity is normalized to the community size.
• Salary : in thousands of dollars per year.
• languages :
• C++, C# : 53
• Haskell : 53
• Scala : 60
• Rust : 65
• countries : Programmers in USA earn 2* more than in West-Europe.

Integrated Development Environments :
{ Visual Studio Code, Atom } are among the most popular ones. Their usage is not smaller than of Eclipse, IntelliJ, Netbeans.

Version control:
Git is crazy popular with 0.7. That is 7* more than the next one. Mercurial is at 0.02.

Platforms :
Windows and Linux are the most popular :
    Windows : 0.41
    Linux : 0.33

Employement :
    full time : 0.67
    part time : 0.13
    do not have a boss : 0.9

Algorithm developers earn about 1.1* more than other developers.