Year Percent change 2001 16.349 2002 -6.707 2003 -2.183 2004 0.406 2005 2.975 2006 -4.677 2007 9.825 2008 11.425 2009 9.917 2010 8.478 2011 7.674 2012 5.547 2013 2.49 2014 4.146 2015 3.955 2016 5.321 2017 -4.6 2018 0.8 2019 5 2020 4.8 2021 4.8 2022 4.8 2023 4.8 2024 4.8