Brake wear
There is no generic answer. An airline that operates half its 737s(and there are several types) on 5 hour sectors will wear out the brakes 5 times as fast as the same airline that operates its other 737s on 1 hour sectors. That assumes that the same pilots operate the A/C into similar length runways at similar landing weights and a host of other variables. The closest you can get to an answer is if you ask a specific airline and even so brake wear rates will vary tremendously. Any particular reason you need this information?