Year	Percent change
1980	5.24
1981	7.714
1982	4.078
1983	5.682
1984	7.754
1985	9.61
1986	-2.729
1987	2.119
1988	9.6
1989	10.265
1990	8.453
1991	3.215
1992	2.608
1993	-3.391
1994	8.291
1995	12.037
1996	4.66
1997	15.558
1998	8.196
1999	7.804
2000	13.368
2001	6.005
2002	4.281
2003	0.049
2004	10.605
2005	6.054
2006	7.929
2007	8.414
2008	0.876
2009	-16.637
2010	18.357
2011	6.289
2012	0.884
2013	-0.804
2014	2.883
2015	3.469
2016	2.144
2017	2.878
2018	7.443
2019	2.653
2020	2.844
2021	1.995
2022	3.595
2023	2.745
2024	3.895