Year	Percent change
1980	12.663
1981	8.445
1982	4.482
1983	-3.217
1984	1.248
1985	0.48
1986	1.424
1987	0.815
1988	0.682
1989	-2.749
1990	6.215
1991	1.02
1992	2.446
1993	4.583
1994	3.496
1995	3.637
1996	1.872
1997	4.601
1998	2.912
1999	4.348
2000	1.017
2001	3.565
2002	2.052
2003	2.447
2004	1.885
2005	3.371
2006	0.772
2007	3.054
2008	4.982
2009	-0.439
2010	4.044
2011	1.476
2012	2.75
2013	1.01
2014	0.381
2015	1.253
2016	0.963
2017	1.336
2018	1.239
2019	1.942
2020	1.949
2021	1.965
2022	1.975
2023	1.983
2024	1.989