Year	Percent change
1980	4.228
1981	5
1982	-6.9
1983	-15.7
1984	-6.5
1985	1
1986	-2.3
1987	14.7
1988	8.2
1989	6.5
1990	1
1991	6.552
1992	-5.231
1993	8.767
1994	6.159
1995	2.237
1996	26.845
1997	10.842
1998	11.859
1999	7.823
2000	1.679
2001	12.721
2002	8.794
2003	6.501
2004	7.811
2005	8.721
2006	9.851
2007	7.426
2008	6.876
2009	6.351
2010	6.688
2011	7.118
2012	7.198
2013	7.141
2014	7.444
2015	6.594
2016	3.763
2017	3.737
2018	3.3
2019	4
2020	4
2021	4
2022	4
2023	9.434
2024	11.666