Year	Percent change
1980	4.408
1981	2.927
1982	-0.416
1983	6.513
1984	3.85
1985	10.167
1986	1.211
1987	-4.686
1988	2.511
1989	-0.858
1990	8.625
1991	13.012
1992	2.682
1993	4.301
1994	8.194
1995	2.789
1996	5.609
1997	6.175
1998	1.395
1999	4.322
2000	6.886
2001	2.13
2002	6.014
2003	4.08
2004	6.113
2005	0.083
2006	2.35
2007	5.986
2008	-1.071
2009	3.817
2010	4.939
2011	1.934
2012	4.429
2013	0.886
2014	2.489
2015	3.688
2016	1.46
2017	1.595
2018	2.512
2019	3.622
2020	4.239
2021	5.551
2022	5.248
2023	4.627
2024	4.887