Year	Percent change
1980	-6.123
1981	-9.056
1982	-1.014
1983	0.485
1984	1.98
1985	5.826
1986	4.79
1987	0.509
1988	2.871
1989	5.819
1990	-6.444
1991	-2.443
1992	4.135
1993	1.683
1994	6.39
1995	6.556
1996	7.274
1997	0.803
1998	1.1
1999	-0.636
2000	5.093
2001	7.39
2002	5.652
2003	5.213
2004	3.087
2005	6.639
2006	2.132
2007	0.486
2008	3.556
2009	-6.062
2010	-1.963
2011	5.553
2012	0.439
2013	-1.931
2014	1.197
2015	1.652
2016	7.169
2017	2.705
2018	0.724
2019	3.256
2020	4.647
2021	2.192
2022	2.23
2023	2.239
2024	2.239