highest number of writers
... that in 2013 Iceland had the highest number of writers, books published, and books read per capita?
... that in 2013 <a href="./Iceland" id="mwBWY" rel="mw:WikiLink" title="Iceland">Iceland</a> had the <b id="mwBWc"><a href="./List_of_Icelandic_writers" id="mwBWg" rel="mw:WikiLink" title="List of Icelandic writers">highest number of writers</a></b>, books published, and books read per capita?