It is well known PostgreSQL has a lot of systems statistics which is useful for observing how Postgres works. Almost all of Postgres monitoring tools and plugins are based on that statistics. Despite of a lot of stats already present, a new statistics added at every new release. In this talk I going to make an overview about statistics tools added or extended in last Postgres releases. I going to talk about where these stats can be useful and how to use it with practical examples. This talk will be useful for system and database administrators who interested in monitoring.