What is a ballpark percentage to assume SFH rents will increase per year long-term?

[Josh Lyons]

I've rented two homes over the last few years, and I'm interested in slowly buying more single-family homes and keeping them long-term. I'm curious if experienced investors have a ballpark percentage they factor that rents will increase, on average, over the long-term (like 30 years)? Is it good to assume it will gradually outpace overall inflation like around 4-5%? That's the ballpark number I've gathered after some reading on it.