Year Percent change 1989 -22.895 1990 -4.529 1991 16.756 1992 5.756 1993 -3.591 1994 7.659 1995 14.371 1996 13.73 1997 22.747 1998 7.349 1999 19.325 2000 -4.807 2001 1.086 2002 1.267 2003 2.2 2004 8.022 2005 8.503 2006 22.751 2007 12.47 2008 9.827 2009 -9.247 2010 11.895 2011 11.9 2012 6.908 2013 2.422 2014 2.724 2015 9.115 2016 5.875 2017 0.647 2018 -14.377 2019 -9.015 2020 1.658 2021 4.217 2022 5.228 2023 4.189 2024 5.038