Year	Percent change
1980	4.035
1981	2.661
1982	1.4
1983	-1.2
1984	1.6
1985	11.3
1986	7.955
1987	-0.236
1988	5.796
1989	2.15
1990	-0.603
1991	9.07
1992	0.233
1993	3.461
1994	1.315
1995	5.716
1996	11.015
1997	6.317
1998	7.308
1999	7.333
2000	1.887
2001	6.609
2002	4.353
2003	7.81
2004	4.478
2005	8.665
2006	5.984
2007	4.372
2008	5.8
2009	2.962
2010	8.446
2011	6.627
2012	6.453
2013	5.794
2014	4.326
2015	3.895
2016	5.946
2017	6.317
2018	6.034
2019	5.988
2020	5.988
2021	6.029
2022	6.034
2023	6
2024	6