Year	Percent change
1980	4.402
1981	2.811
1982	0.946
1983	0.208
1984	-1.559
1985	-3.071
1986	-3.173
1987	-1.589
1988	0.908
1989	1
1990	2.079
1991	4.559
1992	-0.371
1993	0.838
1994	0.646
1995	5.046
1996	0.873
1997	-0.433
1998	-0.174
1999	-1.208
2000	-1.852
2001	-0.581
2002	0.73
2003	0.435
2004	0.577
2005	1.148
2006	2.979
2007	6.336
2008	9.067
2009	4.276
2010	5.353
2011	2.703
2012	3.579
2013	2.541
2014	1.915
2015	1.263
2016	1.152
2017	-1.104
2018	2.483
2019	-0.7
2020	2.24
2021	2.148
2022	2.107
2023	2.054
2024	2.055