Year	Percent change
1980	5.227
1981	5.063
1982	1.591
1983	3.638
1984	6.334
1985	7.1
1986	-2.348
1987	3.101
1988	10.2
1989	10.544
1990	8.572
1991	2.937
1992	1.319
1993	-2.373
1994	5.688
1995	7.205
1996	4.656
1997	11.028
1998	7.852
1999	6.434
2000	13.524
2001	5.771
2002	4.286
2003	0.532
2004	8.661
2005	6.665
2006	7.576
2007	7.572
2008	2.171
2009	-14.368
2010	13.131
2011	5.935
2012	1.438
2013	0.641
2014	2.888
2015	3.547
2016	2.707
2017	4.658
2018	3.834
2019	2.736
2020	2.588
2021	2.772
2022	2.146
2023	2.375
2024	1.708