If you actually read this, you'll quickly see that it is not a list of 37 "values", but rather a clever way of structuring the company's "about" page; for instance, "08" is a list of their clients.
No that's not actually true. That link was just the first from here: http://37signals.com/manifesto And #8 is meant to demonstrate that they have very large and important clients, proving their "experience", which is the title of that section.