Year	Percent change
1980	13.502
1981	10.378
1982	6.158
1983	3.16
1984	4.368
1985	3.528
1986	1.944
1987	3.578
1988	4.1
1989	4.791
1990	5.419
1991	4.216
1992	3.042
1993	2.97
1994	2.596
1995	2.805
1996	2.937
1997	2.338
1998	1.547
1999	2.193
2000	3.367
2001	2.817
2002	1.596
2003	2.298
2004	2.668
2005	3.366
2006	3.222
2007	2.871
2008	3.815
2009	-0.32
2010	1.637
2011	3.14
2012	2.073
2013	1.466
2014	1.615
2015	0.119
2016	1.27
2017	2.136
2018	2.435
2019	1.998
2020	2.733
2021	2.271
2022	2.225
2023	2.232
2024	2.236