Year	Percent change
1980	-3.171
1981	2.554
1982	-16.049
1983	10.099
1984	17.492
1985	8.376
1986	6.536
1987	5.409
1988	13.537
1989	5.844
1990	1.947
1991	2.601
1992	5.165
1993	7.541
1994	8.32
1995	5.844
1996	5.35
1997	14.388
1998	5.321
1999	8.091
2000	8.486
2001	-4.915
2002	1.823
2003	4.313
2004	8.474
2005	7.311
2006	5.302
2007	5.748
2008	0.859
2009	-12.44
2010	13.767
2011	5.573
2012	3.697
2013	1.986
2014	2.454
2015	0.603
2016	-0.003
2017	4.213
2018	2.871
2019	0.245
2020	2.236
2021	2.343
2022	2.211
2023	2.154
2024	2.173