Year Number 1996 16.582914352417 1998 17.5 2000 14.9253730773926 2002 4.97512435913086 2003 1.99004971981049 2004 4.807692527771 2005 4.30622005462646 2006 1.43540668487549 2007 0.956937789916992 2008 0.480769217014313 2009 0.947867274284363 2010 0 2011 0.469483554363251 2012 0 2013 0 2014 0 2015 0 2016 0 2017 0 2018 0 2019 0 2020 0 2021 0 2022 0