Year	Percent change
1980	0.328
1981	14.517
1982	6.739
1983	10.579
1984	13.985
1985	0.994
1986	-5.22
1987	6.622
1988	5.627
1989	5.83
1990	10.437
1991	11.318
1992	7.057
1993	10.362
1994	20.272
1995	9.519
1996	10.69
1997	16.415
1998	6.729
1999	6.217
2000	10.126
2001	3.301
2002	2.793
2003	4.828
2004	5.875
2005	-0.125
2006	3.854
2007	10.89
2008	-0.953
2009	-11.501
2010	12.37
2011	7.975
2012	1.231
2013	6.377
2014	3.702
2015	3.88
2016	4.092
2017	4.745
2018	1.836
2019	2.677
2020	3.168
2021	2.986
2022	3.1
2023	2.318
2024	1.923