Year	Percent change
1980	7.357
1981	14.221
1982	-2.053
1983	-2.078
1984	15.454
1985	8.2
1986	1.327
1987	-2.381
1988	7.561
1989	5.94
1990	1.801
1991	-1.529
1992	3.481
1993	-0.855
1994	1.707
1995	3.148
1996	2.961
1997	14.866
1998	2.462
1999	3.007
2000	12.437
2001	0.112
2002	-2.016
2003	-0.952
2004	9.215
2005	6.711
2006	6.567
2007	11.198
2008	3.863
2009	-10.033
2010	12.781
2011	5.186
2012	1.113
2013	15.204
2014	-6.276
2015	2.495
2016	6.672
2017	-0.153
2018	3.303
2019	1.689
2020	4.137
2021	4.133
2022	4.235
2023	4.477
2024	4.475