Year Percent change 2003 -16.045 2004 29.794 2005 7.268 2006 47.412 2007 34.12 2008 15.499 2009 -29.772 2010 -2.948 2011 2.992 2012 1.768 2013 -3.791 2014 1.033 2015 9.381 2016 13.317 2017 8.684 2018 9.653 2019 2.296 2020 -2.435 2021 1.522 2022 1.796 2023 1.984 2024 1.702