There is no way to know how many other people have applied, but it looks like you can view all the eligibility criteria in the official application in the document you linked. What I can tell you is that most aid is given on a first-come, first-serve basis.
Good luck,
Brian Boswell
VP, Research & Development
This information does not constitute tax advice and is provided for informational purposes only. Please consult your tax advisor, financial advisor, local taxing authority, and/or plan provider or sponsor for more information.