Year Percent change 1993 -14.799 1994 -22.766 1995 -12.142 1996 -9.851 1997 -3.175 1998 -1.815 1999 -0.203 2000 5.932 2001 5.209 2002 5.3 2003 9.5 2004 11.8 2005 3.1 2006 7.6 2007 8.2 2008 2.2 2009 -15.1 2010 4.1 2011 5.466 2012 0.239 2013 -0.027 2014 -6.553 2015 -9.773 2016 2.441 2017 2.525 2018 3.291 2019 2.709 2020 2.99 2021 3.09 2022 3.183 2023 3.3 2024 3.279