How to dblp (Digital Bibliography & Library Project) data update ?

Question

I'm doing a graduate thesis using data from dblp. therefore I researched about your DBLP program .Follow this Link I know the way that program built to go up from TOC file . But I woudl like to have some questions about updating DBLP's data :

1. How DBLP update data quickly ?
2. DBLP updated automatically or manually ?
3. if DBLP updates automatically ,DBLP takes which method and tool ?
4. Where is TOCs file come from ? By tool or by hand ?
5. How long will data DBLP be updated ?

This information is very useful for my thesis , hope to receive an answer from you !