Year Percent change 1980 7.447 1981 7.482 1982 1.882 1983 1.113 1984 5.947 1985 6.103 1986 11.639 1987 -1.577 1988 6.168 1989 7.449 1990 5.915 1991 -3.284 1992 0.839 1993 -1.535 1994 4.684 1995 5.99 1996 3.948 1997 10.489 1998 4.656 1999 3.338 2000 8.11 2001 0.885 2002 -2.187 2003 0.341 2004 3.601 2005 9.851 2006 3.288 2007 5.819 2008 4.893 2009 -3.785 2010 7.876 2011 9.29 2012 -2.536 2013 13.574 2014 -7.733 2015 4.342 2016 5.914 2017 -0.679 2018 2.808 2019 2.426 2020 4.386 2021 4.384 2022 4.547 2023 4.82 2024 4.821