The content is very different on each page.
Each document starts off in life as an XML document and is transformed using XSL, so each one shares a similar HTML structure, but I must stress that the design is very lightweight.
It's all CSS and DIVs, the pages don't even have a navigation bar (all navigation on these pages is via a breadcrumb trail). The only repetition baring a 3 word footer is in the placement of the HTML tags (H1, DIV, P etc.) There's no visible content that is repeated.