How to get value for selected Radio button?

I am trying to get a value for selected radio button but not finding any attribute which give the selected value. Can you please help how we can extract selected value. i know for annotation GetCheckStatus value will be 3 if radio button is selected.

Dear user,
We are on the issue. Meanwhile, for better traceability, would you please move the request to our support platform at:
www.radaeepdf.com/support/tickets .

Thank you.