Income Reporting in Form 10-10EZ

I know I have to include Social Security (SSA) in my income reporting for VA Health. My question is, do I report the total amount of SSA I received, or just the taxable part (shown on line 9 of 1040)?

For example, there is ZERO tax liability if my total income is less than $25,000. Mine is just below that at $24,000.

So which figure do I use, $24,000 or ZERO?