Levels of difficulty

When learning a language you are progressig greadually, from the first level to the second one, etc. Do you know how many levels exactly exist? What are these levels like? Here is a table to give you the clue.

Levels Description CEF
Very Advanced I speak and understand completely fluently. C2
Advanced I speak and understand very well but sometimes have problems with unfamiliar situations and vocabulary. C2
Pre-Advanced I speak and understand well but still make mistakes and fail to make myself understood occasionally. C1
Upper Intermediate I can communicate without much difficulty but still make quite a lot of mistakes and misunderstand sometimes. B2
Intermediate I can speak and understand reasonably well and can use basic structures but have problems with more complex grammar and vocabulary. B1
Low Intermediate I can make simple sentences and can understand the main points of a conversation but need much more vocabulary. B1
Pre-Intermediate I can communicate simply and understand in familiar situations but only with some difficulty. A2
Elementary I can say and understand a few things. A1/2
Beginner I do not speak any foreign language.

*CEF – The Common European Framework of Reference for Languages