Year	Percent change
1980	8.098
1981	5.804
1982	-1.87
1983	4.327
1984	6.527
1985	0.637
1986	1.684
1987	2.757
1988	3.167
1989	2.746
1990	1.653
1991	-7.893
1992	10.377
1993	16.666
1994	13.29
1995	8.752
1996	5.76
1997	14.029
1998	8.871
1999	11.338
2000	16.103
2001	1.323
2002	3.669
2003	-1.211
2004	8.656
2005	6.9
2006	10.129
2007	9.065
2008	6.585
2009	-20.089
2010	6.179
2011	1.986
2012	1.24
2013	1.119
2014	-2.725
2015	0.929
2016	3.949
2017	7.481
2018	3.2
2019	3.266
2020	3.106
2021	3.143
2022	3
2023	3
2024	3