Year	Percent change
1980	3.266
1981	0.5
1982	0.6
1983	2.4
1984	3.4
1985	4.6
1986	6.6
1987	5.9
1988	4.4
1989	3.8
1990	7.045
1991	2.072
1992	0.584
1993	1.206
1994	1.567
1995	3.571
1996	4.544
1997	3.525
1998	3.708
1999	4.84
2000	4.934
2001	0.85
2002	7.019
2003	8.777
2004	8.533
2005	7.947
2006	4.661
2007	8.464
2008	5.567
2009	5.382
2010	6.359
2011	7.905
2012	5.141
2013	6.784
2014	6.729
2015	6.165
2016	6.867
2017	6.783
2018	6.585
2019	3.996
2020	4.209
2021	4.323
2022	4.878
2023	4.873
2024	4.889