Are wages increasing at the same rate? Or is the new wealth just flowing to the already rich?
Average salary increase of 10% sounds like it somewhat answers what you were asking.
Here's another relevant tidbit:
https://www.livemint.com/Money/5wpK2P8H02D3ujDFYHzfBI/Number...
Anecdotally, in my company, an annual salary bump of just 10% is considered a punitive action.
Edit: looks like the wealthy are getting more wealthy and the poor are getting more wealthy, but not as much.