Year	Percent change
1980	3.568
1981	4.723
1982	1.424
1983	2.586
1984	2.21
1985	4.451
1986	3.551
1987	7.49
1988	3.564
1989	1.419
1990	6.633
1991	4.618
1992	7.155
1993	3.771
1994	7.011
1995	9.654
1996	5.054
1997	4.068
1998	4.183
1999	3.536
2000	8.869
2001	0.145
2002	-0.16
2003	1.106
2004	4.977
2005	4.142
2006	5.773
2007	6.021
2008	3.176
2009	1.329
2010	5.541
2011	5.15
2012	2.214
2013	4.284
2014	3.907
2015	2.586
2016	4.008
2017	3.457
2018	3.282
2019	3.3
2020	3.301
2021	3.132
2022	3.111
2023	3.054
2024	2.998