Year Percent change 1995 -8.2 1996 18.552 1997 27.572 1998 1.294 1999 3.208 2000 15.631 2001 -7.291 2002 25.275 2003 20.414 2004 4.16 2005 14.527 2006 -8.874 2007 4.349 2008 -0.993 2009 1.306 2010 1.048 2011 28.076 2012 11.184 2013 22.617 2014 -6.134 2015 -20.664 2016 4.788 2017 11.305 2018 17.077 2019 7.719 2020 6.905 2021 5.942 2022 5.776 2023 5.382 2024 4.692