Year Percent change 2003 -11.621 2004 34.665 2005 4.653 2006 41.902 2007 38.722 2008 11.996 2009 -31.721 2010 -4.302 2011 5.642 2012 -1.358 2013 -1.293 2014 1.376 2015 6.373 2016 13.154 2017 8.067 2018 10.267 2019 2.385 2020 -3.004 2021 1.411 2022 1.664 2023 1.869 2024 1.587