Year % 1996 3.654637 1997 3.654637 1998 3.654637 1999 3.654637 2000 3.654637 2001 3.380783 2002 3.380783 2003 3.380783 2004 3.380783 2005 2.78874 2006 1.552223 2007 26.7035 2008 1.552223 2010 1.730394 2011 1.730394 2012 3.211326 2013 3.916784 2015 15.26278 2019 6.674485 2021 4.070913