Year	Percent change
1980	5.334
1981	7.236
1982	3.731
1983	-0.487
1984	9.153
1985	7.636
1986	-0.817
1987	1.114
1988	6.428
1989	10.375
1990	7.523
1991	10.715
1992	-1.09
1993	-6.575
1994	9.486
1995	6.988
1996	6.024
1997	11.847
1998	7.127
1999	5.558
2000	14.449
2001	6.529
2002	3.128
2003	2.306
2004	9.748
2005	7.435
2006	12.869
2007	10.267
2008	0.659
2009	-16.679
2010	16.002
2011	8.995
2012	3.112
2013	1.422
2014	3.969
2015	4.225
2016	1.895
2017	5.667
2018	2.318
2019	2.63
2020	3.798
2021	3.8
2022	3.8
2023	3.65
2024	3.5