Year	Percent change
1980	-4.447
1981	1.854
1982	-3.352
1983	3.048
1984	10.411
1985	3.369
1986	2.972
1987	6.242
1988	4.538
1989	13.143
1990	6.943
1991	0.633
1992	4.888
1993	6.798
1994	13.099
1995	14.598
1996	10.044
1997	14.817
1998	4.016
1999	8.457
2000	8.528
2001	11.262
2002	4.74
2003	-9.147
2004	-2.513
2005	17.752
2006	10.379
2007	11.635
2008	-11.562
2009	-1.518
2010	-5.636
2011	3.488
2012	5.761
2013	2.306
2014	9.105
2015	15.691
2016	6.894
2017	-5.488
2018	3
2019	4.71
2020	4.6
2021	4.44
2022	4.44
2023	4.4
2024	4.4