Year Number 1996 15.5778894424438 1998 16 2000 1.49253726005554 2002 0 2003 0 2004 0 2005 0 2006 0 2007 0 2008 0 2009 0 2010 0 2011 0 2012 0 2013 0.469483554363251 2014 1.44230771064758 2015 2.38095235824585 2016 4.7619047164917 2017 4.2857141494751 2018 5.2380952835083 2019 5.2380952835083 2020 4.7619047164917 2021 5.2380952835083 2022 6.13207530975342