<page_title> Grey's Anatomy (season 4) </page_title> <section_title> Episodes </section_title> <table> <cell> 1617 <col_header> No. in season </col_header> <row_header> 7778 </row_header> </cell> <cell> 18.09 <col_header> U.S. viewers (millions) </col_header> <row_header> 7778 </row_header> </cell> </table>
Grey's Anatomy final season was watched by 18.09 million viewers.