Year Number 1996 0 1998 0 2000 0 2002 0 2003 0 2004 3.39805817604065 2005 0.485436886548996 2006 0.483091801404953 2007 0 2008 0 2009 0 2010 0 2011 0 2012 0.947867274284363 2013 0.947867274284363 2014 0 2015 0.952380955219269 2016 0.476190477609634 2017 2.85714292526245 2018 3.30188679695129 2019 4.24528312683105 2020 3.77358484268188 2021 1.88679242134094 2022 2.35849046707153