Unfortunately that FOI cannot be processed because the Oyster data is only retained for 8 weeks, so it is not possible to provide the data for a whole year.
I have just made another FOI which focuses on two specific weekends in January 2026, one with the diversion and one with normal service, which asks for count
– on the diversion route without a touch at Willesden Junction on a diversion day
– on the diversion route with a touch at Willesden Junction on a diversion day
– on the diversion route without a touch at Willesden Junction on a normal day
– on the diversion route with a touch at Willesden Junction on a normal day
– on the normal route on a normal day
– entries at South Hampstead after exit at Swiss Cottage (or vice versa) on a diversion day
– entries at South Hampstead after exit at Swiss Cottage (or vice versa) on a normal day