Fig 2. Percentages of users leaving the system at the end of different adapted years.

For each group of users, we give the median number of trips per year, the median number of active months, the median age and the percentage of men. For example, ‘blue users’, which stopped at the end of their first adapted year, represented 60.8% of first year users, 51.1% were men, and were characterized by the following median numbers: 8.9 months of activity, 47 trips, 24 years old. Yellow users stopped at the end of their second adapted year. They had a median number of trips during their first year of 89 and during their second year of 35. They stopped after 7.7 active months during their second year. The figures for other users can be read from the figure.