Year	Percent change
1980	4.886
1981	-0.178
1982	2.174
1983	-3.864
1984	-16.82
1985	7.718
1986	6.352
1987	0.088
1988	6.871
1989	0.957
1990	-1.308
1991	2.49
1992	-6.516
1993	1.449
1994	4.005
1995	-6.611
1996	5.089
1997	0.496
1998	12.712
1999	0.994
2000	-2.584
2001	8.04
2002	5.338
2003	7.055
2004	-0.825
2005	8.416
2006	5.807
2007	3.166
2008	9.65
2009	-0.712
2010	8.36
2011	2.209
2012	11.85
2013	5.268
2014	7.529
2015	4.336
2016	4.927
2017	4.895
2018	5.173
2019	6.532
2020	6.006
2021	5.566
2022	11.034
2023	6.798
2024	5.514