How often does Google update its search results?

Hi, i was wondering about this
Google updates are unkown for all SEO thats a fact

But since this forum has the best and more experienced SEO's i wanted to ask 1 thing
How often does Google update its search results? according to your experiences
its like 1 month ? 2 months? 3 months?
weeks?
have you ever find differente results on working with different sites? (most surely)
i know it has a lot to do with the authority, age, backlinks of every individual page/domain but i just wanted to know
if someone had a rough idea on how much time does it take with moderated backlink structure and jucy content updates

i feel like i've been working forever creating good backlinks and good content
i little push up would be nice Google!

CHeers everybody!

I know that YouTube updates about once a day, but from my experience I think Google updates the results about every two weeks or so.

My ranking change almost everyday on google, however i have been building links continuously over a few months.

make sure you are indexing your backlinks, you can have the best backlinks in the world but they are usless if google has not found them!