The interest rate, to which I think my right hon. Friend is referring, is currently 6.1%, but it varies with inflation. Critically, it means that those who earn more in their 20s and 30s will pay more—[Interruption.] It applies throughout the study period, as Mike Kane should know. Thereafter, the rate varies depending on earnings. It does serve an important purpose, but it cannot be considered in isolation from all the other aspects of the system.