Year Percent change 1993 -3 1994 8.6 1995 3 1996 2.419 1997 14.599 1998 10.761 1999 3.901 2000 14.141 2001 7.215 2002 8.561 2003 4.128 2004 13.92 2005 12.073 2006 15.696 2007 13.956 2008 1.875 2009 -17.04 2010 11.995 2011 7.993 2012 0.363 2013 3.33 2014 6.263 2015 5.322 2016 6.171 2017 10.953 2018 9.89 2019 5.289 2020 4.996 2021 5.126 2022 4.857 2023 4.371 2024 4.589