Files that are added as excluded are still counted in the "changes" section.
e.g.
<logentry revision="15227">
<author>someone</author>
<date>2007-05-31T02:38:54.000000Z</date>
<paths>
<path action="M">/trunk/path/ignoredfile</path>
</paths>
<msg>labla</msg>
</logentry>
Will still count as 1 in "Total Commits"
and
<logentry revision="17550">
<author>someone</author>
<date>2007-07-24T08:35:01.000000Z</date>
<paths>
<path action="M">/trunk/somepath/notignoredfile</path>
<path action="M">/trunk/somepath/ignoredfile</path>
</paths>
<msg>blabla</msg>
</logentry>
Will count as 2 changes in the somepath dir, will see it as 2 in activity on that day etc.