Is your feature request related to a problem?

I think a metric that will often scale with how long a PR is open for is the number of comments on a PR.
More comments suggests either a large number of changes that need to be made OR some async back-and-forth that may be better resolved with a call.

Describe the solution you'd like

In the report I would like to see some of the following (excluding bot comments):

• Mean number of comments per PR.
• Median number of comments per PR.
• 90th percentile number of comments per PR.
• Number of comments on each PR.

Describe alternatives you've considered

No response

Additional context

No response