Year Percent change 1980 4.426 1981 6.571 1982 5.424 1983 2.095 1984 2.882 1985 3.188 1986 0.018 1987 1.865 1988 1.97 1989 5.041 1990 5.323 1991 5.256 1992 3.454 1993 2.485 1994 0.416 1995 1.915 1996 0.752 1997 0.348 1998 -0.194 1999 1.643 2000 1.489 2001 0.332 2002 0.88 2003 0.56 2004 1.289 2005 0.975 2006 0.629 2007 2.022 2008 0.719 2009 0.296 2010 0.535 2011 -0.583 2012 -0.434 2013 0.081 2014 -0.308 2015 -1.281 2016 0.015 2017 0.86 2018 1.439 2019 0.175 2020 1.245 2021 0.875 2022 1.045 2023 1 2024 1