Before Mountain View landed rent control a few years ago, my rent was being increased 10% year over year - I had enough after 3 years and moved to Sunnyvale where my rent was $50 more a month for an extra bedroom and 300-400 sqft extra.

Interestingly, my rent has remained stable ever since moving - guess it's possible to have much better luck with smaller landlords.

In the US, it is very common the past decade or so.

I'm in bumblefudge-nowhere-Midwest USA, and even we've averaged 10% yearly rent increases, for more than 5+ years now. Every top-20 metro area I've looked at, has had it worse than us on rental price increases.