Facebook Footer – Non-Trimmed ?

The Facebooks footer:

Facebook © 2008

is made up of the following parts:

<div class="copyright">
  <span title="Non-Trimmed">Facebook </span>
  <span title="75">&copy;</span> 
  <span title="10.16.93.101">20</span>
  <span title="19269744">08</span> 
</div>

Hover your mouse over the Facebook footer in a browser to see the title text appear.

What do these numbers mean I wonder…

the IP Address – the backend server handling the request?
the last number – the time it took to generate the page