Year	Percent change
1980	0.215
1981	2.867
1982	2.841
1983	0.723
1984	2.658
1985	-0.253
1986	1.535
1987	4.051
1988	-0.065
1989	0.736
1990	-3.497
1991	-11.892
1992	-3.064
1993	-0.576
1994	2.947
1995	2.541
1996	0.014
1997	3.34
1998	4.236
1999	3.187
2000	4.209
2001	3.841
2002	4.528
2003	3.849
2004	5.005
2005	4.388
2006	3.851
2007	0.422
2008	0.851
2009	-6.601
2010	0.655
2011	1.658
2012	-1.631
2013	2.094
2014	4.225
2015	3.536
2016	2.281
2017	4.137
2018	4.94
2019	3.6
2020	2.7
2021	2.4
2022	2.2
2023	2.2
2024	2.2