I know it's hilarious "data and facts" indeed. That's what RAAF and DSTO are working with.
So let's ask Kym Osley whether APA have the program access and insight to determine these things based on the real "data and facts".
Oh wait, the Senate already did that and funnily enough the answer was no.
Not one of those people have access to anything beyond what is on the Internet...
And to that point, most of the publicy available "data" that they use is fabricated by them to suit. It is pretty easy to try and make your data look good, especially when you stack it and use incorrect assumptions to make your case