Of leases 24 months long the average lease should be 12 months in right now (given steady state). I.e half of them expire in a year. Lets say that they realised

Of leases 24 months long the average lease should be 12 months in right now (given steady state). I.e half of them expire in a year. Lets say that they realised this summer that things will be different then the effect should gradually start to show almost immediately.