Year % 1995 29.34 1998 22.31 1999 22.19 2000 22.19 2001 22.2 2002 70.47 2003 20.25 2004 13.68 2005 13.38 2006 13.38 2007 10.25 2008 10.23 2009 10.1 2010 9.99 2011 9.99 2012 9.99 2013 9.99 2014 10.04 2015 10.04 2016 11.46 2017 12.73 2018 12.74 2019 12.62