Year	Percent change
1980	6.725
1981	3.523
1982	2.163
1983	0.972
1984	-1.042
1985	1.636
1986	3.32
1987	7.632
1988	5.34
1989	6.649
1990	7.859
1991	3.37
1992	3.13
1993	-0.687
1994	1.489
1995	2.307
1996	3.497
1997	4.426
1998	4.792
1999	3.888
2000	3.787
2001	1.943
2002	0.769
2003	-0.934
2004	1.812
2005	0.767
2006	1.553
2007	2.492
2008	0.199
2009	-2.978
2010	1.899
2011	-1.827
2012	-4.028
2013	-1.13
2014	0.893
2015	1.822
2016	1.926
2017	2.795
2018	2.08
2019	1.677
2020	1.5
2021	1.4
2022	1.4
2023	1.4
2024	1.4