ITK by the Numbers 1032 – # of users subscribed to the mailing-list 400 – # of emails posted monthly to the users-list 819 – # of pages in the Software Guide PDF document 1800 – # of monthly hits to the URL of the Software Guide PDF 1900 – # of monthly hits to the URL of the Tutorial PDF 2400 – # of monthly hits to the source code files (.zip +.tar.gz)