I graduated in May 2016 (paid tuition for Jan to May), but 1098T form shows $0 in box 2. I definitely paid tuition in 2016 though. What do I put for box 2 in turbo tax?

I graduated in May 2016 (paid tuition for Jan to May), but 1098T form shows $0 in box 2. I definitely paid tuition in 2016 though. What do I put for box 2 in turbo tax? Do I put the amount billed or the total loans the school provided me for 2016? I'm confused about what to do.