Year Percent change 2003 -11.349 2004 65.794 2005 -4.949 2006 27.116 2007 7.19 2008 -9.07 2009 -28.101 2010 2.124 2011 21.488 2012 -15.079 2013 4.945 2014 -10.178 2015 -10.33 2016 8.348 2017 2.082 2018 6.491 2019 1.429 2020 2.512 2021 3.115 2022 3.524 2023 3.399 2024 3.114