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It's three years since the Bus Hopper fare launched, and according to figures from TfL, it's more popular than ever.
More than a colossal 368 million Hopper Fare journeys have been made since the scheme's launch and there are now roughly 450,000 'hops' happening a day.
To fill in the blanks for those not down with the system, the hopper allows passengers to make unlimited London bus journeys for just £1.50, within an hour of tapping in. Actually it's within 70 minutes, but an hour sounds better for marketing purposes.
TfL has also released data showing where the hops happen by local authorities. Southwark, Lambeth and Westminster are the three most popular hopper boroughs. On the other end of the spectrum, Bexley, the City of London and Sutton see the least hops happen within their boundaries. (Although the City is surely skewed by how small it is compared to other districts.)
One bus route reigns supreme in the world of 'hops'. The 18, which runs from Sudbury to Euston, sees around 4,600 people hopping aboard per day.