Ask HN: ratio of unit/functional tests to monitoring checks

I'd writing a talk on web application monitoring and if people have a moment I'd love some data to use in that talk.

For your currently live project/team/organisation/whatever what is the ratio of unit, functional, integration tests to checks in your monitoring system?

For instance in a recent project (medium sized rails stack) we have ~2000 tests to about 240 checks in Nagios.

Any data points would be interesting. Anonymous data is fine.