CSS Profile - Child dependent social security and SI-160C

I receive SSDI and my minor children receive child dependent social security. I am completing the CSS profile and am stuck on the Student Income and Benefits 2015 (SI) section. My senior daughter filed taxes in 2015 (1040EZ). Her ss benefits are listed on the tax return but they are untaxed. There is a worksheet for SI-160C but it does NOT list untaxed SS benefits. Based on this, my first inclination is not to list her 2015 untaxed SS benefits, even though they are included on her tax return.

Does anyone have insight into this?

The parent income section (PI-165A) asks for all family untaxed SS benefits except the student for 2015 and PR-115A (2016) asks for all family untaxed SS benefits except the student.

Am I correct that on the CSS Profile the students untaxed SS is not listed anywhere?

Thank you for any help you can provide.

Can someone familiar with the CSS Profile please help?

The instructions for SI-160 specifically say not to include Social Security benefits.

The instructions for PI-165 say the following: Enter the total annual (not monthly) amount of untaxed social security benefits (including Supplemental Security Income) that your parents received in 2015 for all family members except you, the student. (Do not enter the amount your parents received for you anywhere on this application.)