Application.installerName values

https://docs.unity3d.com/ScriptReference/Application-installerName.html lists this simply as a read-only string. What are the possible values for this? For example, can I use it to tell the difference between someone who installed my app from the US iTunes app store vs the Canadian iTunes app store?

 

While not the same, this asset was very helpful: https://assetstore.unity.com/packages/tools/integration/precise-locale-65836