Get list of all muted test for a project

Hi

I am trying to use the REST API to get the list of all muted tests. If i use:

http://teamcity/app/rest/testOccurrences?locator=affectedProject:(id:xxxx),currentlyMuted:true,count:1000 

I get the list across all builds (ie the same test shows multiple times for different build ids). What I want is what is displayed here: http://teamcity/project.html?projectId=xxxx&tab=mutedProblems but via the rest endpoint. 

I am using version 9.

Thanks in advance.