Year	Percent change
1980	7.681
1981	7.546
1982	15.326
1983	20.509
1984	12.095
1985	4.202
1986	4.301
1987	2.794
1988	1.705
1989	1.597
1990	1.504
1991	-0.602
1992	1.886
1993	-3.72
1994	12.661
1995	25.805
1996	3.921
1997	4.783
1998	3.177
1999	1.832
2000	1.245
2001	4.45
2002	2.817
2003	0.63
2004	0.25
2005	1.993
2006	4.906
2007	1.125
2008	5.338
2009	3.04
2010	1.279
2011	2.94
2012	2.382
2013	2.05
2014	1.853
2015	2.698
2016	0.873
2017	0.642
2018	0.942
2019	1.192
2020	1.492
2021	2
2022	2
2023	2
2024	2