Year Percent change 1998 0.925 1999 -1.167 2000 -0.939 2001 -1.065 2002 25.869 2003 13.443 2004 4.416 2005 9.642 2006 10.898 2007 8.83 2008 8.585 2009 6.27 2010 10.461 2011 9.775 2012 10.043 2013 10.619 2017 25.675 2018 34.277 2019 43.691 2020 23.21 2021 18.431 2022 12.755 2023 8.241 2024 5.774