Year Percent change 1993 4734.88 1994 891.188 1995 376.746 1996 80.23 1997 15.886 1998 10.577 1999 22.684 2000 28.203 2001 11.959 2002 0.757 2003 5.21 2004 9.036 2005 13.52 2006 9.076 2007 12.843 2008 25.201 2009 15.9 2010 9.365 2011 7.958 2012 0.565 2013 -0.261 2014 12.1 2015 48.684 2016 13.913 2017 14.443 2018 10.947 2019 8.028 2020 5.88 2021 5.485 2022 5.233 2023 5.05 2024 4.993