Year Percent change 1996 5.898 1997 -1.51 1998 -6.366 1999 16.121 2000 19.083 2001 -3.691 2003 5.012 2004 13.377 2005 13.413 2006 7.284 2007 2.408 2008 5.247 2009 -12.81 2010 2.083 2011 9.226 2012 10.795 2013 10.922 2014 -2.679 2015 -4.478 2016 -2.057 2017 5.512 2018 5.405 2019 2.871 2020 2.44 2021 2.443 2022 2.561 2023 2.615 2024 2.949