Year Percent change 1982 9.595 1983 3.799 1984 25.303 1985 60.105 1986 146.792 1987 741.187 1988 34.8 1989 30.363 1990 77.075 1991 34.195 1992 110.047 1993 4.608 1994 11.809 1995 10.981 1996 6.647 1997 6.728 1998 5.839 1999 -2.696 2000 -1.611 2001 -0.065 2002 3.735 2003 2.211 2004 1.978 2005 -1.601 2006 7.213 2007 5.962 2008 6.276 2009 3.39 2010 4.568 2011 3.119 2012 10.081 2013 1.12 2014 -0.707 2015 -3.402 2016 3.142 2017 5.011 2018 3.979 2019 2.244 2020 2.352 2021 2.316 2022 2.28 2023 2.24 2024 2.297