This report presents radiotherapy waiting times and activity data for 2016–17, from the Radiotherapy Waiting Times National Minimum Data Set Collection. In addition, data are presented for the previous collection years (covering the reference periods 2013–14 to 2015–16).

Interactive figure 1 presents information on:

• number of courses
• number of days a patient waited at the 50th and 90th percentiles.
• proportion of courses where emergency radiotherapy treatment began either on the same or the next day.