Year Percent change 1993 -1.2 1994 -30.9 1995 -1.428 1996 -5.9 1997 1.6 1998 -6.5 1999 -3.4 2000 2.1 2001 6.1 2002 7.8 2003 6.6 2004 7.4 2005 7.5 2006 4.8 2007 3 2008 7.8 2009 -6 2010 7.1 2011 5.818 2012 -0.59 2013 9.044 2014 5 2015 -0.338 2016 4.409 2017 4.691 2018 4 2019 3.5 2020 3.8 2021 3.8 2022 3.8 2023 3.8 2024 3.8