The Publisher Performance dashboard allows you to view how your campaigns are performing based on Publisher. Click on Publisher Performance to access this page
From here, you can filter the data by:
You can also adjust which columns appear by clicking on the Columns drop down and checking/unchecking the column names
You can also adjust the time period from the default last 14 days by clicking on the Calendar icon and making a new selection.
If you wish to export this data to .CSV, click Export and select Download.