Year Percent change 1998 -42.991 1999 -37.471 2000 -26.014 2001 18.001 2002 -24.207 2003 119.1 2004 -74.696 2005 175.715 2006 -9.602 2007 11.621 2008 -5.225 2009 34.761 2010 18.085 2011 2207.00 2012 -12.973 2013 5.197 2014 29.027 2015 -41.471 2016 -41.027 2017 16.069 2018 13.449 2019 -13.677 2020 -3.712 2021 -25.715 2022 -3.985 2023 -2.094 2024 9.955