Year Percent change 1993 -62.4 1994 -8 1995 -3.432 1996 -5.744 1997 29.524 1998 24.973 1999 -4.755 2000 5.831 2001 32.03 2002 9.914 2003 -0.488 2004 7.691 2005 42.441 2006 39.689 2007 45.687 2008 6.777 2009 7.402 2010 -1.721 2011 0.299 2012 -1.209 2013 -1.604 2014 -2.388 2015 9.674 2016 2.513 2017 -7.124 2018 -5.951 2019 9.587 2020 7.231 2021 1.196 2022 -1.747 2023 -1.434 2024 -2.299