what years were wikimania conferences held ?
wikimania 2005, wikimania 2006, wikimania 2007, wikimania 2008, wikimania 2009, wikimania 2010, wikimania 2011, wikimania 2012, wikimania 2013, wikimania 2014
of these conferences, what were the attendances experienced?
380, 400, 440, 650, 559, about 500, 720, 1,400, 700
of these, what numbers were over 1,000?
1,400
of the conferences, which one had this number?
wikimania 2012