Useful things to tell us

• What you were trying to find out, and whether you found it.
• Data or a view you expected and could not see.
• Anything that looks wrong, or that you can check against a source we have not included.
• What already works, so we know what not to break.
• Whether you would use it again, and for what.

Before you write

• Coverage is partial by design, and the Data and sources section says what is included and what is not. It is worth a look first.
• An email address is only needed if you would like a reply.