Take a look at your 2019 or 2018 Schedule E for a "typical" rental property you own - feel free to do more than one. (Pick something that was rented all year and didn't necessarily undergo a special rehab or some kind of special circumstance. Just a normal rental.) How much did you spend on Repairs (line 14) for this property in that year compared to how much total income you received?
(Feel free to list both numbers, like "Spent $1,000 on repairs, gross rents were $10,000)