Somehow "number of EOs" doesn't sound like the right metric to use when determining whether executive power is growing. Surely it's the content that matters.
All done by executive order. Makes basically all modern EOs look pretty innocuous by comparison.
That said I actually agree and would love to see a sharp reduction in executive power, especially as it comes to using the military. If we're going to go bombing places, that should require a declaration of war from Congress. And 'emergency' powers should not be enabled for decades on end.
It would take some serious effort (and there’d be disagreement) but maybe you could classify “important” government changes and if they were enacted by congress, EO, courts, etc.