Year	Percent change
1980	10.011
1981	6.4
1982	2.538
1983	-2.074
1984	-7.358
1985	-3.971
1986	7.644
1987	2.561
1988	1.589
1989	1.564
1990	10.011
1991	4.6
1992	0.956
1993	1.136
1994	-0.655
1995	-1.131
1996	0.496
1997	-0.36
1998	0.429
1999	0.512
2000	-1.197
2001	-0.841
2002	-0.286
2003	0.185
2004	0.757
2005	1.861
2006	3.204
2007	5.892
2008	12.56
2009	3.537
2010	3.256
2011	4.032
2012	2.936
2013	1.246
2014	1.011
2015	0.065
2016	1.1
2017	1.6
2018	0.9
2019	1.5
2020	1.8
2021	3.8
2022	3.4
2023	2.8
2024	2.5