calculate stray capacitance for a 5-turn coil

Hello,
I want to calculate the stray capacitance for a 5-turn coil.
I use AC/DC module, 2D axisymmetry, stationary study and parametric sweep.

There are two questions about this calculation:
1. When I calculate the mutual capacitance between two turns, such as the capacitance between turn1 and turn2, I can get es.C12 and es.C22. I think es.C12 is the mutual capacitance. But I don't know what es.C22 is. because there is no shield or ground point in the simulation.
2. Can I get all mutual capacitance values in one simulation? For example, set a right range value in parametric sweep, and compute one time. Then get C12, C23, C34, C45.

I attach my case.

I am very appreciate for your help!

Regards,
Anita H.