How much to charge

Hi all,

I’m wondering what the national UK average is for web design these days. I’m starting up on my own (daunting task) and I’m trying to get an idea of how much I should charge clients for a website.

Lets say a basic 5 page HTML site;

CSS styling, 4 images per page, 5 pages (home, about, services, portfolio, contact) plus a contact form.