Year	Percent change
1980	6.928
1981	7.375
1982	7.777
1983	4.718
1984	1.177
1985	1.49
1986	0.954
1987	0.655
1988	1.468
1989	3.342
1990	15.798
1991	8.132
1992	-0.323
1993	0.603
1994	2.374
1995	2.533
1996	3.038
1997	0.809
1998	0.6
1999	3.083
2000	1.569
2001	1.448
2002	0.797
2003	0.986
2004	1.257
2005	4.12
2006	3.092
2007	5.465
2008	6.3
2009	4.61
2010	4.496
2011	4.905
2012	3.199
2013	2.703
2014	3.127
2015	3.678
2016	3.482
2017	1.507
2018	0.7
2019	2.5
2020	2.7
2021	4.7
2022	3.9
2023	3
2024	3