Year	Percent change
1980	2.163
1981	3.503
1982	-3.188
1983	2.601
1984	5.909
1985	4.738
1986	2.144
1987	4.072
1988	4.41
1989	2.317
1990	0.164
1991	-2.086
1992	0.901
1993	2.661
1994	4.495
1995	2.692
1996	1.619
1997	4.28
1998	3.898
1999	5.161
2000	5.179
2001	1.789
2002	3.017
2003	1.801
2004	3.087
2005	3.203
2006	2.635
2007	2.073
2008	1.008
2009	-2.928
2010	3.089
2011	3.147
2012	1.762
2013	2.33
2014	2.868
2015	0.69
2016	1.107
2017	2.979
2018	1.834
2019	1.458
2020	1.93
2021	1.787
2022	1.637
2023	1.6
2024	1.6