I don’t think that is a “permanent” or constant size, so those numbers shouldn’t be taken as a parameter.

So please download the suitable updates from this URL: http://www.avast.com/download-update.

Well, that URL is indeed the correct one for the official download.

@xode,

Why do you need to download the complete VPS? The built in definitions update is very small (between 10KB and 400KB).