From Fedora Project Wiki
These are the command line recipes for the metrics shown on the Statistics page.
Yum
SSH to lockbox and:
egrep 'repo=updates-released-f9' \
/var/log/httpd/archives/proxy*/mirrors.fedoraproject.org-access.log.<date_range> | \
grep '\" 200 ' | awk '{print $1}' | awk -F : '{print $2}' | \
sort | uniq | wc -l > ~/f9-yum-<end_date>.txt