Year Percent change 2000 19.664 2001 27.371 2002 12.069 2003 -6.034 2004 -5.617 2005 8.067 2006 28.083 2007 23.525 2008 7.224 2009 11.199 2010 -8.193 2011 10.848 2012 3.95 2013 21.588 2014 19.085 2015 16.497 2016 -8.787 2017 4.099 2018 11.148 2019 11.285 2020 2.547 2021 5.11 2022 2.656 2023 4.832 2024 3.27