I am using SonarQube 8.2. At the bottom of the dashboard is the ‘Activity’ gadget, which shows the evolution of the project over time in terms of measures like issue count.
I just noticed that the graph shows only analyses starting from 27 March 2019 to 15 May 2019. I do not understand why analyses later than 15 May 2019 are not included although available.
Activity gadget at dashboard
Activity tab (which includes the complete history)