Sentence examples for what has exactly from inspiring English sources

FMRT data analysis, paragraph 3 - "To ensure comparability…": I don't understand what is meant by "comparability" (i.e., with what?) or what has exactly been done here.

Not everyone knew exactly what had just happened.

Just exactly what has been deterred?

Exactly what has changed?

Alas, that is exactly what has happened.

But that is exactly what has occurred.

That is exactly what has been happening.

But that's exactly what has happened.

What has the NBS done, exactly?

And that's exactly what has happened.

Exactly what has Zimbabwe promised?