Year Percent change 1993 -5.049 1994 1.361 1995 -0.756 1996 -10.695 1997 -11.038 1998 -3.586 1999 0 2000 0 2001 -14.195 2002 -4.861 2003 0.336 2004 17.191 2005 17.927 2006 12.135 2007 13.79 2008 -4.668 2009 -13.891 2010 23.68 2011 16.137 2012 1.952 2013 6.094 2014 16.479 2015 8.476 2016 9.081 2017 8.126 2018 15.277 2019 11.307 2020 8.999 2021 9.002 2022 8.998 2023 9.001 2024 9.029