Calculating the mean value of variables for a convergence analysis

Hello Paraview users,

I have data from several structural analyses.
For a convergence analysis, I would like to get mean values of the displacement and ideally the mesh quality (but I was not able to get the variables of the mesh quality filter so far).

I already tried the “Integrate Variable”-Filter. However, I’m not quite sure, this is the right choice for the job. Is the variable integrated under consideration of the number of nodes? Or do I have to norm it afterwards, and if so, how can I do that?

Best regards