Interesting attempt to answer a closely-related question: http://www.antipope.org/charlie/blog-static/2010/07/insufficient-data.html http://www.antipope.org/cha

Interesting attempt to answer a closely-related question: http://www.antipope.org/charlie/blog-static/2010/07/insufficient-data.html http://www.antipope.org/charlie/blog-static/2010/07/insuffic...