Year Percent change 1993 10154.97 1994 401.119 1995 181.651 1996 39.723 1997 10.117 1998 19.993 1999 19.215 2000 25.816 2001 6.122 2002 -0.569 2003 8.243 2004 12.309 2005 10.347 2006 11.625 2007 16.59 2008 22.311 2009 12.31 2010 9.096 2011 4.56 2012 -0.202 2013 0.496 2014 24.87 2015 43.313 2016 12.361 2017 13.669 2018 9.777 2019 6.967 2020 5.622 2021 5.37 2022 5.119 2023 4.993 2024 4.993