Year Percent change 1991 -22.23 1992 -20.658 1993 -41.212 1994 -17.479 1995 5.261 1996 13.487 1997 5.205 1998 -29.2 1999 -28.4 2000 5.414 2001 25 2002 15 2003 18 2004 17 2005 8 2006 -7 2007 17 2008 5 2009 -7 2010 17 2011 34 2012 1 2013 13 2014 2 2015 1 2016 7.7 2017 12.73 2018 11.426 2019 6.5 2020 5.161 2021 5.679 2022 5.721 2023 5.079 2024 5.079