Year % 1993 5.590825 1995 6.135156 1996 2.24021 1997 3.814091 1998 2.480818 1999 4.890806 2000 1.402108 2001 0.5300016 2002 0.5746946 2003 0.6015687 2004 0.4954698 2005 0.1932378 2006 0.2181961 2007 0.2677777 2008 0.3330007 2009 0.4465944 2010 0.41859 2011 0.4028083 2013 0.405693 2015 0.4672348 2016 0.3930961 2017 0.5126327 2018 0.3922961 2019 0.3641043 2020 0.3916155 2021 0.5057766