Year Percent change 1993 -8.7 1994 -12.7 1995 -4.1 1996 -3.608 1997 1.382 1998 -5.345 1999 6.351 2000 10.046 2001 5.09 2002 4.744 2003 7.349 2004 7.176 2005 6.376 2006 8.154 2007 8.535 2008 5.248 2009 -7.821 2010 4.504 2011 5.066 2012 3.7 2013 1.8 2014 0.7 2015 -2.5 2016 0.3 2017 1.647 2018 2.334 2019 1.619 2020 1.707 2021 1.65 2022 1.575 2023 1.645 2024 1.645