Year Percent change 1993 1350.00 1994 1792.14 1995 84.595 1996 6.677 1997 0.389 1998 -7.593 1999 -0.467 2000 2.202 2001 1.78 2002 3.155 2003 3.529 2004 10.455 2005 5.35 2006 11.328 2007 19.561 2008 15.481 2009 0.699 2010 7.95 2011 5.611 2012 -0.277 2013 3.718 2014 -0.107 2015 7.82 2016 15.648 2017 10 2018 2.3 2019 2.5 2020 2.5 2021 2.5 2022 2.5 2023 2.5 2024 2.5