Year Percent change 1981 8.11 1982 6.5 1983 11.6 1984 20.3 1985 5.1 1986 -16 1987 -4.7 1988 14.9 1989 -4.802 1990 3.413 1991 2.1 1992 -6.8 1993 31.4 1994 15.29 1995 10 1996 10.5 1997 0.62 1998 3.5 1999 3.3 2000 13.046 2001 0.702 2002 12.556 2003 -11.864 2004 9.219 2005 -3.428 2006 -0.887 2007 1.658 2008 9.689 2009 4.729 2010 -2.176 2011 10.724 2012 2.064 2013 0.907 2014 3.683 2015 4.138 2016 -4.888 2017 5.382 2018 3.54 2019 -1.177 2020 5.004 2021 3.105 2022 5.622 2023 1.85 2024 -7.315