You can get a detailed activity report for each content:
- number of views
- % views out of total views (importance of this content in your catalog)
- User session reports: who viewed or listened to each content, how long, and the completion rate.
To access this information, there are 2 possibilities:
1/ Analysis report > Contents: then you just have to click on the title of the content you want to have the information about.
2/ Content Management > Catalog: in the edition page of your content, at the very top next to the activation button, you just have to click on the icon: 
To download the information on excel, click on the icon: