Year	Percent change
1980	3.36
1981	6.222
1982	-0.643
1983	2.404
1984	12.062
1985	7.58
1986	11.223
1987	10.883
1988	-1.729
1989	0.495
1990	4.155
1991	-4.447
1992	13.502
1993	13.298
1994	15.493
1995	6.911
1996	7.985
1997	12.629
1998	6.042
1999	7.906
2000	25.46
2001	-4.992
2002	0.687
2003	3.615
2004	15.569
2005	2.592
2006	4.275
2007	9.531
2008	3.499
2009	-12.207
2010	16.42
2011	7.597
2012	-6.548
2013	2.253
2014	2.431
2015	-5.989
2016	-1.214
2017	1.238
2018	1.192
2019	1.014
2020	2.045
2021	2.242
2022	2.275
2023	2.275
2024	2.275