Year Percent change 1993 -2.1 1994 4.9 1995 7.666 1996 6.775 1997 -0.271 1998 2.258 1999 -3.143 2000 0.839 2001 3.986 2002 9.443 2003 13.184 2004 11.926 2005 7.141 2006 7.408 2007 7.277 2008 5.986 2009 -6.699 2010 8.475 2011 -0.332 2012 0.788 2013 5.808 2014 -1.885 2015 -0.501 2016 1.598 2017 4.751 2018 6.338 2019 3.264 2020 3.721 2021 3.877 2022 4.067 2023 4.362 2024 4.512