<r>The index is calculated as per the documentation here <URL url="http://www2.standardandpoors.com/portal/site/sp/en/us/page.family/indices_ei_us/2,3,2,2,0,0,0,0,0,0,0,0,0,0,0,0.html?lid=us_fo_indices_usThere"><LINK_TEXT text="http://www2.standardandpoors.com/portal ... es_usThere">http://www2.stan...