What should be my hourly rate?

Hi everyone, I would like to know your thoughts, please give a range as a response and a brief justification for it if possible I would really appreciate it.

My Experience:

1. One year in Java, C#, C++ and Phython (all combined so I don't know too much about each of them)
2. One year experience in PHP (consider myself proficient)
3. Four months experience in Laravel (consider myself intermediate)
4. Two years experience in HTML, JS, CSS (consider myself proficient)
5. Proficient with foundation and Bootstrap
6. Great knowledge in CSS (above average)
7. Intermediate in jQuery and Ajax
8. Strong knowledge in OOP (SOLID)
9. Intermediate in SQL and MySQL databases
10. Beginner/Intermediate with Linux servers
11. Experience with API integration (JSON, cURL, Javascript, Ajax)

Tools:

1. Proficient in Sublime Text (my workflow becomes fast thanks to this)
2. Beginner in PHPstorm IDE
3. Beginner in NetBeans IDE

Studies:

1. 4th year out of 6 of Systems Engineering.
2. High School diploma with orientation in Computer Science

Please help me figure it out and if you want post your story :)