backing up all the posts

how much space would it take to keep a copy of all the posts up till this point?

I enjoy reading the stuff i posted in the past with both my names this one and the jim one. ahhhh memories of a damned incredibly depressed me.
Uncompressed bakcup of all board settings, members, topics, replies, and everything else that's stored in the database is "50.6 MB (53,115,608 bytes)." Buty that also includes a lot of MySQL commands so it's less. That's a lot of writing.