Earlier quoted context omitted.
Have there been leasing periods in your past where rent increases exceeded 7 percent? Is that common? Also, I assume there is some market pressure to consider, if your increases outpace supply and demand, then tenants would simply move, right?
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.
Indexes and aggregations may show something, but it's important to remember that they're lossier than many people appreciate. You'd have to dig into the data to learn how representative it may or may not be. Since small-time landlords are hard to collect data from, most of these city rental indexes are probably relying on large-scale apartment landlords who are constantly trying to squeeze maximum price-per-unit. I'd say you'd do well to take it with a grain of salt.