Bar chart with several fields

Hi!

I´m have a database for a survey where i have one question per colmn. It is refreshed every two months and this part of the database looks like this:

Customers,Question1,Quesiton2,Question3,Question4,Question5

Customer1,3,3,3,3,3

Customer2,4,4,3,4,3

Customer3,5,3,4,2,4 

The answers are numbers from 1 to 5 and i want to make a bar/column chart where each column of the char represents the average answer for each question.

In power bi, without editing the imported data, i have one field for each column: 

Is there a way to add each question as a separate column in the bar chart?

The solution i found is unpivoting the question columns but it´s a problem because i need to use the individual questions for other visuals and analysis. In reality i have around 70 questions (70 columns) and i need to do this same process with other groups of questions, unpivoting is not an option because if i do it for every group, the power query model becomes too big.