Year Percent change 1993 -36.734 1994 -17.935 1995 -14.226 1996 73.939 1997 1.882 1998 -12.598 1999 -4.219 2000 8.287 2001 17.518 2002 26.015 2003 20.116 2004 13.745 2005 22.767 2006 10.508 2007 4.251 2008 -5.724 2009 16.57 2010 -19.909 2011 34.435 2012 42.809 2013 -14.193 2014 -8.215 2015 23.976 2016 15.822 2017 16.859 2018 4.891 2019 8.128 2020 9.688 2021 9.176 2022 5.991 2023 5.603 2024 5.239