GI Bill Application ROTC Scholarship Amount : Veterans

On the VA website, the GI Bill application asks for the dollar amount, by year, of ROTC scholarship funds received. I have no records of my actual scholarship amount, nor do I have access to my schools billing portal any more.

Anyone commissioned through ROTC on scholarship and then used GI bill after separating have any advice? Can I estimate the amounts? Screenshots below

VA Web Application

Corresponding question on the PDF Version of the VA Form 22-1990