Year	Percent change
1980	7.383
1981	5.462
1982	4.058
1983	3.093
1984	4.167
1985	2
1986	2
1987	1.638
1988	2.688
1989	-3.181
1990	5.094
1991	-5.398
1992	8.531
1993	3.006
1994	-5.277
1995	3.61
1996	-1.34
1997	4.216
1998	1.153
1999	1.924
2000	1.417
2001	3.329
2002	4.15
2003	2.474
2004	-0.239
2005	4.23
2006	1.242
2007	0.492
2008	0.975
2009	1.81
2010	2.051
2011	2.227
2012	2.961
2013	3.518
2014	1.95
2015	1.034
2016	2.157
2017	2.708
2018	2.763
2019	2.797
2020	2.9
2021	3.101
2022	3.201
2023	3.3
2024	3.3