[otrs] OTRS backups

Anyone doing OTRS backups have any estimates about how big they get (obviously depending on usage)? We will be doing the OTRS backup script that comes with the installation package and shipping the dumps to our Backup Data Center location. I've just installed it and done my first backup. Obviously it's not that big but I'm wondering how big it might be a year or two from now. Thanks, Daniel CONFIDENTIALITY NOTICE: The contents of this email are confidential and for the exclusive use of the intended recipient. If you receive this email in error, please delete it from your system immediately and notify us either by email, telephone or fax. You should not copy, forward, or otherwise disclose the content of the email.