Year	Percent change
1980	4.677
1981	1.741
1982	0.131
1983	7.063
1984	7.852
1985	7.223
1986	2.261
1987	1.132
1988	6.254
1989	10.879
1990	8.556
1991	6.08
1992	4.777
1993	3.147
1994	8.431
1995	5.001
1996	10.025
1997	7.76
1998	0.671
1999	2.846
2000	3.174
2001	4.343
2002	-0.272
2003	-0.113
2004	1.029
2005	0.453
2006	-0.806
2007	1.361
2008	0.132
2009	-4.1
2010	0.556
2011	-0.814
2012	1.573
2013	-1.66
2014	3.083
2015	4.722
2016	1.062
2017	-0.227
2018	-0.805
2019	2.413
2020	3.056
2021	3.157
2022	3.063
2023	2.922
2024	2.931