How to calculate the UV and Referrer Instances with the exported Adobe Analytics data columns

Hi All,

In the Adobe Analytics Workspace, I can see these 2 generic metrics - "Unique Visitors" and "Referrer Instances" , but I wasn't able to find them in the Exported Adobe Analytics Data Columns.

So I am wondering if there's a way to calculate the UV and Referrer Instances numbers using any of the available here.

Hope someone can help! Thank you!