How do I know if any of the money we paid federal tax on is exempt from GA state taxes?

All of my income is from Social Security or my federal retirement annuity; none of my wife's is.  Is any of my SS or federal retirement subject to GA state taxes?

State tax filing

If you are age 62 to age 64 up to $35,000 of your retirement income, SS and pension, is excluded from Georgia taxation.  If you are age 65 or older up to $65,000 of your retirement income is excluded from Georgia taxation.

 

State tax filing

Thank you very much for your help.