Year	Percent change
1980	13.518
1981	10.745
1982	6.433
1983	5.05
1984	5.992
1985	5.034
1986	1.218
1987	2.679
1988	3.433
1989	3.766
1990	4.503
1991	5.04
1992	6.501
1993	4.889
1994	4.66
1995	2.612
1996	2.582
1997	3.308
1998	2.338
1999	1.136
2000	4.858
2001	1.988
2002	2.781
2003	3.978
2004	1.896
2005	2.026
2006	2.252
2007	2.171
2008	4.384
2009	0.181
2010	2.558
2011	3.482
2012	3.087
2013	0.381
2014	-0.272
2015	-1.539
2016	-1.216
2017	0.681
2018	0.784
2019	0.54
2020	1.629
2021	1.684
2022	2
2023	2
2024	2