Don't show code coverage chart in statistics screen on configuration level

Hi!

We don't see statistics for code coverage on Project level, although in build result on tab "Code coverage" I see coverage summary. I try to add new chart in statistics screen, but I don't see statistics values for code coverage, only number of tests, success rate and other. How can I add code coverage results to Statistics screen?

We use Nunit 2.6.4 and JetBrain DotCover, Teamcity 10.0.4

I tried to use Nunit 3.6.0, but I have the same result.