How to extract reaction force on this support (rubber brick)?

[rte4563]

I have several of these rubber bricks (picture below), and on top of them is a concrete foundation (not pictured here). Below the rubber bricks is the deck (not pictured here). I would like to know the reaction force of this rubber brick due to the foundation on top. Should I go to module: Visualization, then "Create XY data" and plot section force or somethis else? Do I try to plot it over an area or over all the nodes on the top surface?

 

[FEA way]

How is the foundation modeled ? If its geometry is included and contact is modeled then contact force reading should be sufficient.